'Holborn' distance gauge by Ensign Ltd., c 1935, in original box. 'Holborn' Distance Gauge by Ensign Ltd, c 1935 1935
For Retina cameras; support calibrated 1:4.5, 1.3, 1:2, 1:1.5, in carton with close-up attachment gauges 1:1.5, in carton. Kodak Distance Gauge 1:1.5 and Holder