2017-19-3A (Micrometer)

2017-19-3A (Micrometer) image

A micrometer made by Central Scientific co chicago, Illinios. The object sits in a blue cardboard box with a sticker on its front that reads "One, 72655, 0-25cm, Micrometer Caliper, Central Scientific Co". A folded piece of paper in the box contains instructions for use.

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Institution