Light Dragon Mk III 1935 as sent to India

Light Dragon 1934/5 Mk IId War Office

Light Dragon 1932 Mk IIC Poland

Artillery Tractor 1936 Belgium (Famillereux)

Artillery Tractor 1931 Low Sides India

Artillery Tractor 1930 Air Ministry

Artillery Tractor 1930 Low Sides Japan also China 1933

Artillery Tractor 1929 Low Sides

This picture also appears on p63 of Ventham and Fletcher's Moving the Guns. It is the prototype 2 ton tractor, based on D5E1, the Artillery Observer's Vehicle, but without the high sided body. This prototype took part in the 1930 Wool trials. After performing well 14 vehicles were ordered (the Light Dragon) and delivered in 1931, when they were issued to 20 Battery of the 9th Field Brigade RA to replace their Birch Guns. The production veicle can be seen here.

Towing an 18 pdr and limber

Artillery Tractor 1929 Chertsey Demonstration Model D42

The caption to this photograph in Album Two adds:

also
611 Light Dragon Mk IIC - Greece 1934
612 Light Dragon Mk IIC - War Office 1935
614 Light Dragon Mk IID - India 1936
615 Light Dragon - Siam & Java 1939

This is the high sided version of this vehicle.