SA: 1918 "Make your 6d fly". Small Wings SECOND DEMONSTRATION (WANDERERS) FLIGHT card franked KGV 1d tied special AERIAL POST cds 22.NOV. Card is dark blue on red print, a lovely example addressed to England (thus the 1d postage). VF, scarce.
Message side begins: "I thought this would interest you, it's our 1st air post and official so it can go in a collection..."