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American Thompson Steam Gauge
Physical Description:The Thompson Improved Steam Indicator comes in a dark stained wooden box 285mm wide, 207mm deep, and 240mm tall. It opens about halfway up its height to reveal a number of objects. The box, as well as various components, are…
Tags: 19C, 20C, mechanical
Dietzgen Master-Pro Drafting Instrument Set
Physical Description: The drafting set is stored in a simple grey case with a red felt interior. The case only has three words on the outside cover: “Made in Germany”. The only markings on the inside of the case are the letters “DS” written in marker…
Tags: 1930s, Architecture, Cartography, Compass, Dietzgen, Divider, Drafting, Technical Drawing
Enraf Nonius Cad 4 Turbo X-ray Diffractometer
Physical Description:
Machine is black, white and gray with a square base. The back of the base has several slots for the cords to be attached. On the back side is also a long thin piece of silver metal with inscriptions SERIE NR., U.S.PAT.…
Machine is black, white and gray with a square base. The back of the base has several slots for the cords to be attached. On the back side is also a long thin piece of silver metal with inscriptions SERIE NR., U.S.PAT.…
Tags: Cad 4 Turbo, Crystallography, diffractometer, Nonius
Picket Model 1000 Slide Rule
Physical Description: The Pickett 1000 slide rule is made of three rectangular bars of aluminum alloy coated in plastic with grooved slides. Two bars are connected at the end with braces that are mounted to the flat side of the bars and the third…
Tags: 20C, Calculator, Engineering, Mathematics, Pickett, Science, Slide Rule