Mystic sells pre-cut mounts for every US postage stamp.  That’s 407 different sizes of stamp mounts that make it extra easy for you to collect!

Stamp mounts are sold according to size in millimeters. The first number is the horizontal measurement, or width, across the mount. The second number is the vertical measurement, or height, of the mount. Example: A 45 x 30 mount measures 45 mm wide by 30 mm high.

What's the best way to find the mounts you need?  Type the Scott number of the US stamp you need to mount into the search bar above. On the stamp's page, select the blue "mounts - click here" bar to view mounts available in the correct size for that stamp.  Already know the size of the mount you need?  Try entering the dimensions, in millimeters, into the search bar above.

Click here to learn how to measure stamps for mounts.  Or, use our printable mount size guide to measure any stamp!  Click here to download the printable guide.

Please Note: The mount size for self-adhesive stamps is generally 6-7mm larger in each direction because their backing makes them thicker.