Model, scale 1:30, of 240 ft wooden receiving tower for CH (Chain Home) radar, Mark II West Coast pattern 1940-1962
Model, scale 1:30, of 240 ft wooden receiving tower for CH (Chain Home) radar, Mark I East Coast pattern 1936-1962
Burroughs Class 4 1000 hand operated adding and listing machine with keyboard for Sterling currency 1925-1935