Description

Collection of 12 in Imperial scales (3 No).

(1) Made by Armstrong. Imperial scale. Obverse: 1/2, 1/4 and 1/8 inch. Reverse: 3/8, 3/4, 11/2 and 3 inch.

(2) Made by WH Harling Ltd. Imperial scale. Obverse: 1/500 and 1/2500 feet. Reverse: 6 in = 1 mile feet and 1/1250 feet.

(3) Made by EN Mason & Sons Ltd. Imperial scale. Obverse: 10 and 20 inch. Reverse 30 and 40 inch.

Scale 1 is at the top of the image, scale 2 is in the middle and scale 3 is at the bottom.