29th Jun, 2022 10:00
The Collectors Sale
A British WWII Air Ministry Bombing Scale
c.1940-1945, brass calculator in the form of proportional dividers, engraved 'BOMBING ERRORS AND WIND SPEED SCALE' and 'COOKE TROUTON & SIMMS LTD REF NO, 9/360' with Air Mintistry crown above AM, one set of points for 'CHART', one for 'SCALE', scales for height in 1000s of feet, time of fall scale and conversion to 10k feet scale, 22.5cm long
Sold for £69
Result including buyers premium
c.1940-1945, brass calculator in the form of proportional dividers, engraved 'BOMBING ERRORS AND WIND SPEED SCALE' and 'COOKE TROUTON & SIMMS LTD REF NO, 9/360' with Air Mintistry crown above AM, one set of points for 'CHART', one for 'SCALE', scales for height in 1000s of feet, time of fall scale and conversion to 10k feet scale, 22.5cm long
Auction: The Collectors Sale, 29th Jun, 2022
