I started this collection when I was about eight years old, getting one every other month. I got about ten of them a quit. Over the years I have found some of them in used book stores at a very cheap price. A friend of mine gave me one a couple of weeks ago not knowing I had these and it just so happened I did not have the one he gave me. I have no idea how many there are.
Bottom row left to right:
The Luftwaffe
The Soviet Air Force At War
The RAF At War
America In The Airwar
The Carrier War
Second Row Up:
The Airline Builders
The Path Finders
Soldiers Of Fortune
Knights Of The Air
Third Row Up:
Architects Of Air Power
The Explorers
The Bush Pilots
The Giant Airships
Fourth Row Up:
Barnstormers Speed Kings
Flying The Mail
The Aeronauts