unused Block of Four -- a lower left corner block of four with full sheet margins [37-38, 49-50], fresh mint. Champion handstamps on reverse of each | Christie's

Lot 640

640

unused Block of Four -- a lower left corner block of four with full sheet margins [37-38, 49-50], fresh mint. Champion handstamps on reverse of each

Details

unused Block of Four -- a lower left corner block of four with full sheet margins [37-38, 49-50], fresh mint. Champion handstamps on reverse of each