condition: excellent make / manufacturer: Totco model name / number: No. 145
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1950's Totco (Technical Oil Tool Corporation) hand held Tachometer. This is the No. 145 model with a range of
0-10,000 RPM. A similar version was used on the Norden bomb sight during WW2. It comes in the original box
with all the attachments available at the time, see pictures. Engineers and mechanics, this is a piece of history!
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