Collection search - Coast Defence Displacement Corrector - a very early electro mechanical analogue computer used for calculating gun aiming corrections to allow for guns and radar being in slighty differentlocations
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Record information – Brief 
Coast Defence Displacement Corrector - a very early electro mechanical analogue computer used for calculating gun aiming corrections to allow for guns and radar being in slighty differentlocations
Hierarchical level:Item (Accession level)Date:15 May 1942Reference:Accession number: 1985-197 NPC, Box number: 5040Item no. (creator):1008jType of material:PhotographsFound in:Archives / Collections and FondsItem ID number:3228399Context of this record: -
Record information – Details Date(s):15 May 1942Place:Ottawa, Ont.,Place of creation:No place, unknown, or undeterminedExtent:1 photograph ; 5 x 7 in.
Negative Film B/W - safety filmAdditional information:Subject heading:Source:GovernmentOther accession no.: -
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