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细节
An early 20th Century 6in. radius micrometer sextant by Plath
the oxcidised brass three circle frame signed on the aluminium index arm Plath Hamburg and further inscribed with the Kaisermarine mark, numbered 1061, the brass scale divided 5- 0- 155, stamped D.R.G.M. 274505 and further numbered 7197, six shades, two mirrors, telecope and wooden handle, is in fitted box with accessories and loose test certificate dated 27. Mrz 1915 -- 11in. dia
See illustration
the oxcidised brass three circle frame signed on the aluminium index arm Plath Hamburg and further inscribed with the Kaisermarine mark, numbered 1061, the brass scale divided 5- 0- 155, stamped D.R.G.M. 274505 and further numbered 7197, six shades, two mirrors, telecope and wooden handle, is in fitted box with accessories and loose test certificate dated 27. Mrz 1915 -- 11in. dia
See illustration