1951 15 cent AIRMAIL Corner Blocks (SECOND PRINTING) Scott# C3.2a/b (1318) Updated on December 22, 2023 By admin Comments Off Stamps are in mint never hinged condition. Share Tweet By admin You May Also Like 8 Cent U S Air Mail Stamp Danny The Man Parker #C5- 1923 16 Cent Air Service Emblem Dark Blue. Superb. XF MNH