WW1 era Verner's Pattern MK VI prismatic marching compass

This WW1 era Verner's Pattern MK VI prismatic marching compass was the forerunner of the more common MK VII and MK VIII models used during WW1. Although unsigned, the majority of these compasses were made by E. R. Watts, mostly around the pre WW1 era between 1908 to 1912.

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