1991 29c Nondenominated Flag ATM Maximum Card

1991 29¢ “F” Plastic Stamp
Fleetwood Maximum Card

 Issue Date: January 22, 1991
City: Washington, DC

Although the 'F' stood for Flower on the regular non-denominated stamps, it was purely coincidental that it also stood for Flag on the experimental ATM stamps. As part of the Postal Service's test program with Seattle First National Bank, these stamps were vended through selected automatic teller machines (ATMs) to determine their practicality and appeal.