The American Philatelic Foundation is a not for profit, 501-3C organization, serving the public now for thirty years.Office hours are 10am - 4pm Pacific Time. APF gives much of its time and material to medical facilities and young groups with a specific emphasis on young children that we expect to interest in the hobby of postage stamp collecting. American Philatelic Foundation is the only nonprofit organization in the U . S . that appropriately appraises a stamp gallery. <br /><br />We entice you to put your trust with the APF (American Philatelic Foundation). We offer possibility to have your postage stamp catalogue us put up for sale at open public auction or non-public treaty.