Bidspirit auction | Pan-American Inverts Stamp Sheet

Pan-American Inverts Stamp Sheet - The magnificent 1901 Pan-American Exposition celebrated the impressive progress America had made in engineering and industry. Six stamps were issued in conjunction with the fair. They were the first stamps of the twentieth century and the first bi-colored general release since the 1869 Pictorials. A printing error caused a number of prized inverted stamps. The three stamps on the bottom of this sheet are reprints of 1901 issue.