1914-17 Military Aviation, collection of 21 cards written-up exhibition style on pages, showing a variety of Military Aviation cachets, variety of different detachments, schools for Department of Aviation Fleet, Military School for Pilots, Repair shops, Aeronautical Parks, etc., mixed condition, mostly fine or better. A fascinating look into the early military aviation in Imperial Russia (Image)

Est.US$2,500

1920s-30s selection of 34 covers or cards, mostly with Air Post franking, some better, few interesting items, mostly fine (Image)

Est.US$1,000