Pencil marks on back of stamps

Other than the obvious pencil marks indicating a Scott# that are placed on the back of stamps, are there any other reasons why this is done? Also, should one erase the pencil markings on a MNH stamp?
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  • Wayne, I will leave them as they are and include that detail in the description. It was a fairly common practice "back in the day" especially for early stamps. It is interesting though that many times the scott number written on the back is actually incorrect. Happens more times than one might think.
  • Sometimes catalogue numbers change over time making the pencil markings obsolete. You'll also see 'owner's marks' on some stamps, some even in ink via tiny handstamps. What Greg said: leave them be and just make note of them.
  • George - you mentioned ‘owner’s marks’ sometimes in ink via tiny hand stamps. Does this devalue a stamp?
  • edited September 2021 1 LikesVote Down
    Unless the marks on the reverse side seep through and are visible marking the design, I do not see any major devaluation. Many expertizers also did that. It is part of the provenance of that item.
  • I've seen owners and dealers stamps on back many times. I treat them just like pencil notes. I know you didn't ask me, but IMO they don't really affect the value of a lower value stamp since it's low value anyway and they mostly don't affect the value that much of high value stamps as they are high value for a reason. But value is always in the eye of the beholder. Some collectors don't worry that much about the backs, some have the wherewithal to afford the very best and pristine copies of a given stamp.
  • I consider writing on the back of stamps, except for genuine (not forged) expertiser marks as damage. To me a stamp with gum disturbed with writing is damaged, and most certainly not MNH.
  • Wayne ~ In addition to what's been said, some owner's marks can, surprisingly, enhance the value of a stamp (or cover).
  • Another thing I have found is that even in old collections or otherwise that have a large amount of writing on the backs, the majority of real MNH stamps have not been adulterated by pencil marks. It seems that happened more with used stamps and those with no gum or otherwise not MNH. Just an observation.
  • Wayne, let me chime in here.
    There are comments in this group that I agree with, and those that I don't, but I do respect all of them. So what I'm about to say (which may be contrary to other views), is offered knowing such.

    First, pencil marks on the back of MANY stamps should be a red flag. A common phycological ply is to create something known as "anchor bias". If I write 500 on the back of a stamp, this creates a perception that the stamp is a 500. If you start looking at it, you look at it from the perspective that it is a 500, and that leads to something worse known as "confirmation bias". You try to confirm that it IS a 500, rather than being objective, and looking at it for what it really is... a 499. (I'm using this example specifically, there is another thread in this forum that addresses a case of this, and then another thread that I wrote that helps to differentiate them accurately). So I'm mentioning this as one example, it occurs not only in FW's, but many other issues in US, and as I'm not a "world-wide" expert, I can certainly extrapolate that it happens with stamps in every country.

    It's a really insidious practice. When I see a Scott # written on the back of a stamp, I have come to hold this as highly suspicious particularly amount certain issues. Another examples, 622 written on the back of a 694. 622 is a $19 MNH and 694 is $3.50 MNH. Which do you think a less-than-ethical dealer want's you to believe, especially when you're not standing on the floor with a perf gauge an hand, and he/she will never see you again? This kind of trickery has happened extensively in the past. So my first word of caution about Scott #'s written on a stamp is that it is a RED FLAG to verify that the number IS the real number, and do it by eliminating the low value items first, not confirming it is a high value item. That will lead you to skipping checks that can prove that the stamp is not as represented. FW's are a major area that this occurs in especially in coil stamps, but there are many areas in US and I'm sure world wide, where this is an issue.

    One area that I do see majority of material being reasonably accurate with the Scott # written on it however, is in Private Die. This is because there may be as many as 6 (a, b, c, d, e, u) variations of the same design, and it gets tedious to ID them over and over, especially on low value (under $100) stamps. Here, I do tend to leave it alone. Otherwise, I will erase from used stamps to the extent reasonable, and with an OG stamp, i will as well. MNH is different, because this may create a bigger disturbance than the pencil.

    INK stamps (back stamps pressed in with a rubber stamp in ink) are to be AVOIDED. I know others have said "no biggie" but here is the problem. In almost ever case, with a wet ink back stamp, given enough time, the ink WILL bleed through to the other side. Even if it doesn't it may still be bold enough to be seen from the front. These are both bad. In my experience as a seller, I HATE getting stamps in collections with ink back stamps. Expertizers (at least the credible ones) don't use these, they are long term damaging. There are expertizers marks in pencil in many occasions. But here's another question... why would the expertizer write on the back of the stamp? Generally, this was to acknowledge that they'd examined it, BUT this was done as a courtesy because there were issues with the stamp that don't warrant the cost of certificate issuance. (So rather than charging $30 for the stamp, the expertizer looks at it, gives it an ID (that is contrary to what the submitter provided) and charges nothing, or a small fee for the ID, and skips the certificate issuance process which triggers larger fees.
    This is of little value to anyone other than the original submitter...
    Quick: Name a "famous" expertizer... Yeah, there aren't any. If Einstein or Picasso signed the back of your stamp, it's worth $5k. If Carol Chase signed the back of your stamp... it's worth $5. Ok, maybe an extra $15.

    But as a seller, where there are collectors marks in stamped ink on the back, I have a much harder time selling them and when I do they go for a much lower margin. We can all say we are "indifferent" to pencil marks, but it really doesn't matter much what we think. The proof is in the market.


    Second to address "other marks" things that are not Scott #'s and the MNH element.
  • The market does not like marked stamps unless they are expert marks or the stamp is heavily discounted in price since in reality it is defective.
  • Bill. Nice. You distilled what I said in 10,000 words into 1 sentence. I need that skillset. :)
  • Well, gentlemen and gentlewomen can agree to disagree. In my experience, "the market" determines on a case by case basis whether it wishes to purchase any item under any condition if described in detail and properly. Any given potential buyer makes their own decision on any given item. There are a very wide range of collectors who have an equally wide range of condition acceptability. Some are only, as I said before, only interested in the best of the best and capable of paying for it. Others are "album fillers" with their own criteria. Some may be novices and learning. Some have deep pockets. Some have might have a limited budget. Point is that just because one may claim that, in this case, a pencil mark on the back, would qualify the stamp as being defective...another may discount that, based on the specific circumstances of that item, to be acceptable to join their own collection. The "market" is what the "market" is. We, as sellers, do not determine said "market". All we can do is our best to properly and accurately describe the item and price it appropriately and in our own self interest to sell it in a mutual agreed upon transaction.

    Like it or not...."the market" is very much like water always finding it own level. We have all seen the many examples of the RARE and SCARCE common stamps listed for outrageous asking prices. Very few sellers will agree that this practice is appropriate and, as I have observed, most of these scammers are called out on it and turn into vapor. Some don't but...ultimately..."the market" corrects itself.

    Now, I'm done with my take. Take it for what it's worth gents...and ladies.

    P.T. Barnum
  • Well, we've actually digressed from the OP's original question which was: Other than the obvious pencil marks indicating a Scott# that are placed on the back of stamps, are there any other reasons why this is done? Also, should one erase the pencil markings on a MNH stamp?

    But it's a useful discussion. The point about pencil marks on MNH stamps is that it's a bad idea. It does in many cases impact value, and it can also be used as a tool to trick people. The real intention of MNH (Mint, Never Hinged) is to state that condition. The moment you write on it, you're breaking the definition of "MINT". This is why there is a term "Mint" and "Unused".

    If we accept Linn's definition of mint:
    Mint: A stamp in the same state as issued by a post office: unused, undamaged and with full original gum (if issued with gum).

    It fails immediately. The post office did not issue the item with the pencil marks added to the back. They are added by the hands of others. And while many choose to be "loose" with the philatelic terminology, it is well defined by the broader philatelic community, and this is universal, not limited to just US or Brazil or Chad.

    If someone choses to buy the item regardless, that's fair. But it doesn't specifically define the market. It indicates an isolated outlier. Some may call it "luck" others may call it "ignorant". Pencil markings on the back of used stamps, I will tend to erase. There are better ways to ID a stamp, and if some expertizer from 70 years ago touched it, but no one knows what their "mark" is any longer, then the relevance is low. It also further perpetuates the use of misdirection and misleading information (I've seen forged "expert marks" as well). It's a bad practice. In general, it should be avoided for all but the lowest of value material (under $5). For common items where ID takes a lot of effort (more than just looking up a design in a Scott book), it's understandable. But I don't condone it.

    It was, at one time, an acceptable practice to use graphite to enhance the visibility of grill stamps. Now that too is frowned upon (and with good reason, there are just as effective methods of enhancing the visibility of grills without the need to "alter" the stamp, and make no mistake about it... application of a pencil marking is an alteration. Maybe a low impact one, but definition, it too is an alteration.

    Does that mean you can't sell it? No. Does that mean it will sell for less? Maybe. Does one sale of an item at CV with a pencil mark on it define a market? Not really.
  • It would seem to me, that, even in using a fine art eraser, erasing of a pencil mark will result in removal, by abrasion, some amount of paper, resulting in a thin, albeit most likely a microscopic one (enough commas, Greg?). Net result? Swapping one fault for another one that is easier to hide (although close examination should show some difference between the erased area's texture from adjacent paper).
    In the meantime, please mail me all your 1-cent magenta British Guyana's, but don't erase nuthin !'
  • George, and how many 1c magenta BG's do you have? Personally, I think it's criminal what has been done to it, it's a terrible precedent, and I hope some collector stops the practice at some point. It lost about $1.2m value from the previous sale... is it on the decline now? The Magenta is unique not only in it's existence, but in its story. The "value" of that stamp is in turning it over. I suspect if you bisected it, and repaired it, the value of that stamp would not be marred much. It could even add to the "mystical story" that surrounds it. Most stamps don't qualify for this level of endowment.
    I watched a copy of a C3a recently sell for $195,000 that had been sucked through a vacuum cleaner. (Position 78, now called "The vacuum cleaner copy". Now, what's also relevant here is, all 100 of the C3a's were marked on the back in pencil before the sheet was split up number 1 to 100. Another example of where the existence of the pencil is not detrimental, and in fact helps in tracking the entire sheet, and establishing easily fakes from authentic. (Though at least one is now no gum, so the pencil mark vanished with the gum soak). But these are all examples of stamps with extraordinary provenance. They are the "exceptions that prove the rule".

    Another thing about faults... if I use enough magnification I can always find a fault in a stamp.
    There is a reason that 10x to 15x magnification is standard for examination (at the expertizing level). You use higher magnifications to study alterations, like cut edges on FW's. But generally speaking, fault has a limit.
    I have had this challenge before... both in the discussion about submerging a stamp in a liquid soap solution to remove dirt versus water only versus no alteration. I then displayed them in random order, and there was no detectible different in the ability to identify the items. Erased pencil marks are still detectible with the right forensic analysis, but the paper being thinned isn't one of them.
    Some pencil can't be erased, it's just too dark, and too imbedded, so you reduce the visual impact of it, but it will never be gone.

  • Scott, many erasures on the backs of stamps can be seen by the naked eye, usually appearing as a glossy area. As for the Magenta, obviously its an outlier, and I knew you'd take the bait...
  • edited September 2021 1 LikesVote Down
    Have to agree with George, if a stamp has pencil on the back leave it be. Unless you really want to fiddle around with it but keep in mind how many stamps have been bent or creased due to someone trying to erase pencil off the back. If you want a post office fresh copy, look for a different stamp.
  • I think you've both missed my point. I've said erase on used copies, leave on unused copies, UNLESS (here's the strong point) it's an ID that is wrong intended to mislead buyers. It's already not the "right stamp" in that case, and leavening that ID is at risk of someone else using it to fool the unsuspecting.
    If I have the option between erasing a bogus number from the back of an material that is typically significantly lower value, versus having someone else tricked by it, I'd rather erase it, and sell it for what it is, including that condition.
    It's the same reason we will not sell faked material. (Don't mistake that with forged and counterfeit material, which we do sell, but described as such). I've written an entire other thread on that topic.
  • I was talking about used stamps. As long as the current ID is correct, I leave the pencil marks, regardless of what they are or purport the stamp to be, alone (and describe their presence). That said, the same applies to the unused.
  • Understood George. Let me ask you this: Is a pencil mark an alteration? Is an erasure an alteration? Is one alteration "worse" than the other? What I'm saying is, it's net-net, and the absence of the misleading mark is more valuable than its presence.

    Of course, as Andrew pointed out, you run the risk of creasing the stamp if you don't apply proper technique in their removal. But once again... is a pencil mark a fault? Is an erase mark a fault? Is a crease a fault?
    Yes, they all are. And yes there are degrees of fault too, but any one of those can range from tiny/minor to large/major.

    Altered is altered. Why not remove something that has potential for long-term damage (continued staining) versus a scuff mark... Which isn't going to be considered a thin by any expertizing committee.
  • The above responses have been more than I imagined - but, I have read more than once regarding “expert marks” on the back of stamps. Who qualifies as an expert? Just because you have deep pockets to buy stamps IMO dosen’t qualify you as an expert. Also, is their a standard catalogue of stamp signatures, initials, or markings (also referred to as “hallmarks” on old silver) listing said experts? Best, Wayne.
  • A lot more, I imagine. This thread proves one thing....that no one is right and no one is wrong with respect to this topic. Every seller and every buyer has their own opinions on marketability and desirability, respectively. If, as a seller, you decide to not sell items with alterations or "damage" in your opinion, then don't sell them. If a seller does decide to market such material, that is their prerogative as well (properly described, of course). Likewise for the potential buyers.
  • "Is a pencil mark an alteration? Is an erasure an alteration?" Together, they're a pair of alterations, and I'd be willing to bet that in the majority of cases, a remnant of pencil, with or without an indentation into the paper, will remain.
    Expert committee's would hopefully mention the scuff. For me, the word 'scuff' would be a greater turn-off than pob.
    Bottom line (since we've beaten this to death): what Brother Doll said...


  • What did you guys think about Stuart Weitzman signing this stamp?
  • Alright, he didn't have a clue what he was looking at. I've seen the stamp at the museum, I've seen his *%^'ed shoe. Fools sometimes should not have so much money...
  • edited September 2021 1 LikesVote Down
    @ Wayne Kiser.. I am not aware of a catalog/list as you are asking (BTW Excellent Question) However, the current Handbook of the ifsda (International Federation Stamp Dealers Assoc) does contain a list of current expert members. The International Association of Philatelic Experts is a highly respected & trusted organization. Sadly, there is little U.S.A. representation. John Hotchners name (well known to us 'senior citizens menu' collectors) is listed. The others all specialize in other parts of the world & areas of collecting.. I remember Max Johl used to write what were called 'Opinions' always highly regarded & respected. I think Mr. Payton can add to this.
  • Web site with names of expertizers and images of their marks (blue hyperlinks).
    https://www.filatelia.fi/experts/areasa.html
  • Ted, that link is broken. it said this
    The requested resource is no longer available on this server and there is no forwarding address. Please remove all references to this resource.
  • Hmm. I just clicked on it and it went right there.
  • works for me also
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