The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
Valentines Aircraft Recognition Cards. Valentine. Aeroplane. The Proficiency Test Series. The de Havilland Flamingo. No. 24. British Communications and Transport
Aeroplane. Valentines Aircraft Recognition Cards. Valentine. The Proficiency Test Series. No. 32. The Focke Wulf. German General Purpose
Aeroplane. Valentines Aircraft Recognition Cards. Valentine. The Proficiency Test Series. No. 52. The Martin Maryland I. British Bomber
Valentines Aircraft Recognition Cards. Valentine. The Proficiency Test Series. No. 50. British Bomber. The Aeroplane. Recognition Points
Valentine Aircraft Recognition Cards. Valentine and Sons Ltd. Aeroplane
British Fleet Air Arm 2 seat Fighter. The Blackburn Roc 1. Valentine Aircraft Recognition Cards. Proficiency Test Series No. 8. Aeroplane
Dornier Do 18 L. German Reconnaissance Flying Boat. Valentine Aircraft Recognition Cards. Proficiency Test Series No. 27. Aeroplane
The Phillip and Powis Miles Master II. British Advanced Trainer. Valentine Aircraft Recognition Cards. Proficiency Test Series No. 57. Aeroplane
