Stamp Identification

Welcome to the Stamp Identification home page. The purpose of this site is to provide identification tools for some U.S. stamps and postal stationery. The site is a mirror of the one developed by V.F. Thomas, through early 2015. Later edits and additions are made by Mark Dubin to whom additions and corrections may be submitted. Additions that expand the scope of the site are especially needed.

U.S. Front-of-the-book Postage Stamp Identifier - A series of online keys guide you, first by images and then by tables, to a determination of the Scott number for front-of-the-book U.S. postage stamps valued from 0.5¢ to 3.5¢ and G.
U.S. Front-of-the-book Multiple Access Key - This downloadable Excel file uses the auto filter function to help you narrow the possibilities for the stamp that you are trying to identify to one or a few choices. With this multiple access key, you can select any features of a stamp (denomination, perforation, image, etc.) in any order you wish and even deselect any.
U.S. Stamped Envelope and Wrapper Identifier - A series of online keys guide you by simple questions to a determination of the Scott design number for non-airmail and non-official U.S. stamped envelopes and wrappers.

Limitations of this website: These pages often require you to use a perforation gauge to determine how many perforations there are in 2 cm. Sometimes you will have to determine whether the paper a stamp is printed on is watermarked or not. Occasionally you will have to measure the design to determine the printing method used. In many cases the color name assoicated with a stamp or stamped envelope is ambiguous.
These are determinations that you have to perform and are not something that you can ask someone to do based on an Internet image of a stamp. Such tasks may require consulting a catalog such as Scott's and often direct examination of the stamp by an expert.

Further, this is not the place for determining the value of a stamp as there are many variables that can affect its value. Be careful, there are many fakes and excellent forgeries that are passed off as the real thing, especially for stamps of high purchase cost. When in doubt, buy from and/or consult with a reputable dealer, or insist the stamp be validated by one of the well-known stamp grading services.