'Weldon' type pocket rangefinder, brass, with cylindrical case, made by R. Field & Co., Suffolk St., Birmingham, England, 1890-1910.
- Object Number:
overall (open): 50 mm x 67 mm x 45 mm, Wt 0.09kg
overall (closed): 13 mm x 67 mm x 45 mm,
- optical range-finder
- furnishing and equipment
- measuring device - instrument
- Wellcome Trust
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