Letter from Admiralty to Geological Museum, 1917

BGS Archive Ref: GSM/DR/St/A/20

 

This letter relates to materials suitable for making compasses for aeroplanes. Such compasses would have to be reliable,  able to survive the rigours of flight and not wear out. The letter is an example of the more unusual subjects that the Geological Survey was consulted about during the First World War.

Posters relating to the Survey's contribution to the war effort 1914-1918 can be viewed here

Andrew L Morrison