Imperial duplex exposure meter box
Sliding cardboard box for Imperial duplex exposure meter.
Imperial Duplex Exposure meter by Imperial Dry Plate Company Ltd. London. 3/6d. Actinometer in bookform leather folder. 2 calculators for bright and dim light.
Sliding cardboard box for Imperial duplex exposure meter.
Two instruction books for Imperial duplex exposure meter.
Two unused sensitive strips for Imperial duplex exposure meter.