Mint Singles

United States #C98 40¢ Air Post - Philip Mazzei (Perf. 10½ x 11¼) Mint Single

United States #C99 28¢ Air Post - Blanche S. Scott Mint Single

United States #C98 40¢ Air Post - Philip Mazzei Mint Single

U.S. Scott #C97 31¢ Air Post - Olympics High Jumper Mint Single

U.S. Scott #C94 21¢ Air Post - Aviation Pioneers: Octave Chanute & 2 Planes Mint Single

U.S. Scott #C93 21¢ Air Post - Aviation Pioneers: Octave Chanute & Plane Mint Single

U.S. Scott #C95-96 25¢ Air Post - Aviation Pioneers: Wiley Post (2 Varieties, Attached) Mint Pair Varieties include: #C95 - Wiley Post & Plane #C96 - Wiley Post & Large Plane

U.S. Scott #C92 31¢ Air Post - Aviation Pioneers: Wright Brothers, Plane, & Shed Mint Single

U.S. Scott #C91 31¢ Air Post - Aviation Pioneers: Wright Brothers & Plane Mint Single

U.S. Scott #C91-92 31¢ Air Post - Aviation Pioneers: Wright Brothers (2 Varieties, Attached) Mint Pair Varieties include: #C91 - Wright Brothers & Plane #C92 - Wright Brothers, Plane, & Shed

U.S. Scott #C90 31¢ Air Post - Plane, Flag, & Globes Mint Single

U.S. Scott #C89 25¢ Air Post - Plane & Globes Mint Single