early metric micrometer

Made:
1878 in Providence county
maker:
Brown and Sharpe Manufacturing Company

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First type of one inch size micrometer caliper made by Brown and Sharpe in 1878. This one reading metric sizes, 0 to 25 mm. with graduated scale to read to 0.02 mm.

Details

Category:
Industrial Metrology
Object Number:
1928-1122
type:
calliper micrometer
taxonomy:
  • furnishing and equipment
  • measuring device - instrument
  • micrometer
credit:
Brown and Sharpe Manufacturing Company