Other Stamp Varieties
Used 20th Century US Postage Stamps
Most cancelled, or used, 20th-century U.S. stamps are worth less than the paper they're printed on. But used stamps are priceless in the way they tell the story of America, through images of its presidents, technological achievements, prominent citizens, and natural wonders. These cancellations, which are called killers among collectors, often tell stories of their own, too, pinpointing a letter, postcard, or parcel in a particular time and...