Grids and magnetic declinations ...

Grids and magnetic declinations ... - [Washington, 1945] - 89 p. illus., fold. maps. 27 cm. - Its A.M.S. memorandum no. 425 . - United States. Army Map Service. Memorandum ; no. 425. 4th ed. .

"Amendment no. 1" ([2] p.) inserted.

map47000380


Military maps.
Geomagnetism.

UG470 / .U5 no. 425

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