We continually monitor categories that are in particularly short supply for the circuit books (not StampStore). If you have the material in these areas that you are interested in selling, consider using APS circuit sales.
Also note below is a listing that is overstocked and not needed at this time.
Questions, contact the APS Sales Staff at 814-933-3803 ext. 228.
LIST of countries needed
U.S. 19th Century - Stamps and Covers
U.S. Mint (pre-1950)
U.S. Used Only (pre-1950)
U.S. Airmails (stamps)
U.S. Back of the Book
U.S. Fancy Cancels
U.S. Revenues (non-duck stamps)
British Victorian Era
Latin America (single country books)
German Colonies and States and pre-1945
Spain and Spanish Colonies
Portugal and Colonies
LIST of countries NOT needed
Global First Day Covers
Global General (mint/used)
U.S. First Day Covers
U.S. plate blocks