the actual shades. I've purchased a slew of US #279B, which has seven shades identified in the Specialty Catalog, in the hopes of obtaining at least one of each, but many that looked to be a particu

Welcome to Hipstamp. You have a stamp with watermark 191. The letters USPS would be watermarked across the entire sheet and each stamp would only show one letter or parts of one or two letters. You ar