Nr. 100478116

Regatul Unit - Accesorii militare - 1915
Nr. 100478116

Regatul Unit - Accesorii militare - 1915
A rare WW1 British military range finder, dating from c.1915. Designed by Charles Hymans of Cambridge, it was patented in 1915 (Patent No. 4493/15).
The instrument has a brass body with an oxidised finish containing the rangefinder elements, a prism and a sliding lens with integral scale. Patent number, 4493/15. On either side of the body are measurement tables to be used in conjunction with the scale on the sliding lens frame.
Comes with a brown leather case with no markings on it .
The instrument has some dirt inside and on the pullout frame , prism looks good , glass on the pullout frame is not damaged .
I have no idea how to operate this instrument, no quarantee on a correct working .Dimensions: 75x 32x20 mm.Found a few pages of the manual on the internet, and how to use it .
Please see all pictures as they are part of the description.
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