The Allamakee Collector specializes in United States Postal History, including Stampless Covers and Folded Letters, Postal Cards and Envelopes, Fancy Cancels and CDS Cancels from 1851 to 1902, Discontinued Post Offices from 1870 to 1972, Picture Postcards from 1880, US Stampless Folded Letters with Historical Content, and US Philatelic PDF Downloads.