As far as I know, nine Chevrolet and one Ford AT gun tractors were shipped to England.
This Chevrolet model 1939 (1-Ton) Anti-Tank Artillery Tractor Type PAG-C-1139 was given the census number "L1284691" in England. It was photographed during a 1940 exercise of the Princess Irene Brigade.
The second picture shows the same or another Chevrolet PAG Trekker.
