Bidspirit auction | Worldwide Aerophilately - United States

Worldwide Aerophilately - United States - 1938, Eagle Holding Shield, 6c ultramarine and carmine, color variety, centerline block of four, strong colors, full OG, NH, VF and scarce item, Bruechig guarantee hs and penciled position numbers on reverse, C.v. $1,200 , Sc. #C23c