A micrometer made by Central Scientific co Chicago, Illinios. The object sits in a blue cardboard box with a sticker on its top that reads "72655, Caliper, Micrometer, Metric, Central Scientific Company, Scientific, CENCO, Apparatus, J47, Boston, Chicago, Toront, New York, San Francisco, Los Angeles, Montreal". A folded piece of paper inside the box contains instructions for use. A small metal adjustment tool sits along side the micrometer.
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