Case, Map, G.S. No. 2 Mk. 1/1 (Emergency / Economy Pattern)
By the early 1940s, the original Case, Map, G.S. No. 2 Mk. 1 was redesigned under wartime production pressures. The revised Mk. 1/1 (Emergency or Economy Pattern) eliminated the rigid plywood backing, reducing both material use and manufacturing complexity.
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United Kingdom