This collection of 7 Belgium Air Post stamps from 1935-1954 includes #'s C6, C7, C9-C11, C13, and C14. Each stamp features the theme of aviation, The stamps are in mint condition with light hinge marks, and have not been graded or certified. These stamps are perfect for any stamp collector looking to add to their collection of aviation-themed stamps. The stamps have been carefully preserved and are ready to be displayed or used in any way the buyer sees fit. Don't miss out on the opportunity to own a piece of aviation history with this unique collection of Belgium Air Post stamps. Not sure of catalog value due to light hinge mark on each stamp. Perf of C10 and C11 is 12x11&1/2.