Item
No 1 Air Depot
Catalogue reference: AIR 54/148/1
Date: 1940 Sept-1940 Dec
No 1 Air Depot
Piece
Catalogue reference: AIR 1/782/204/4/493
This record is about the Invention of map position indicator. dating from 1913 May - July in the series Air Ministry: Air Historical Branch: Papers (Series I). It is held at The National Archives, Kew.
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Invention of map position indicator.
AIR 1
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Invention of map position indicator.
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