early metric micrometer
1878
Pocket micrometer
circa 1885
Direct digital display micrometer made by Brown and Sharpe
1922-1928
Slocomb digital micrometer
1920-1939
Micrometer Caliper
1900
High speed milling cutters
Gauge made by Brown and Sharpe Manufacturing Company
Micrometer in wooden case
1913-1929
American Standard Wire Gauge
circa 1858
Set of Morse No 8H straight shank Twist Drills
1930-1960
Internal bore micrometer
Rehfus duodenal suction tube with connector and instructions in original box by Davol Rubber Company
1942
Jewellers' gauge
Micrometer, used during AEI apprenticeship
1960-1969
Setting gauge for thread cutting tools
1857-1948
Quixsum Fractional Adding Machine
1924-1930
Four pairs of Brown and Sharpe calipers,a 4"extern
29 degree screw thread gauge
1857-1948
Case for Quixsum Fractional Adding Machine
1924-1930
Four pairs of Brown and Sharpe calipers,a 4"extern
Brown & Sharpe automatic lathe
circa 1897
Automatic Lathe, by Brown & Sharpe Mfg. Co., c. 1895
1895-1905
Two pairs of 6" calipers
Brown and Sharpe 0" to 1" pocket micrometer caliper
1928
Quixsum Fractional Adding Machine
1924-1930
Pocket sheet metal gauge
circa 1867
Glass bottle
1900-1950
Four pairs of Brown and Sharpe calipers
micrometer
Universal Milling Machine by Brown & Sharpe
circa 1920
Universal Milling Machine by Brown & Sharpe
circa 1920