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4 Results
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Japanese Artillery Theodolite in Wooden Box
Technology
Maker: Hattori (seiko)
Japanese Theodolite in wooden box. The instrument consists of a telescope, elevation arc and mount. The telescope pivots on the mount and the angle of the telescope can be read off the elevation scale...RELAWM29755
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Maruzen Mechanical Calculator: Model 18
Technology
Maker: Maruzen Calculating Machine Co. Ltd. Maruzen Calculating Machine Co. Ltd.
Japanese mechanical high speed mathematical calculator. Pinwheel type with rotating cursors. It is a development of an original design invented in 1873 by W. T. Odhner, a Swedish migrant to Russia. ...RELAWM27265
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75 mm Type 88 Anti-aircraft gun Gunner's Clinometer in Wooden Box
Technology
Japanese 75mm Type 88 Anti-aircraft gun gunners quadrant in wooden box. It consists of a stainless steel body with a curved graduated scale. A hole for the pivot of the arm is bored through it. The ar...RELAWM28237
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QF 25 Pounder Correction Rule BC No 3 Mk I
Technology
Maker: W & G
QF (Quick Firing) 25 Pounder Field Gun Correction Rule BC No 3 Mk I in a wooden box. The instrument is rectangular with the obverse being a single sheet of steel on which is set a series of four matri...REL44516