Watt's end measuring machine
1776
Lucien Sharpe sheet metal gauge
circa 1850
Palmer's micrometer (replica)
circa 1848
Whitworth standard wire gauge
1869 to 1897
Maudslay 's Lord Chancellor bench micrometer
1805
Micrometer type mechanical comparator
1855
Dividing engine for making sextants and octants
Made late 1700s, modified 1800s
0" to 4" micrometer
Experimental measuring machine designed by E.M. Eden
1918
Case and accessories for horizontal optical comparator
Component, horizontal optical comparator
Comparator instrument stand made by King of Hayes
1939-1946
Plastic cover for the Talysurf 4 surface finish measuring instrument
circa 1965
Accessories for a horizontal optical comparator
Girth tape
Vernier depth gauge
Set of Johansson gauge blocks, c 1900.
1896-1918
Slocomb digital micrometer
1920-1939
Miniature micrometer by Borletti of Milan in a small pocket
"0-2" Bench Micrometer
1944
Direct digital display micrometer made by Brown and Sharpe
1922-1928
early metric micrometer
1878
Girth tape
Ship's plate thickness measuring gauge with vernier scale.
not known
American Standard Wire Gauge
circa 1858
Metal factors ruler incorporating sliding caliper marked Thomas Bradburn and Sons
Steel wedge gauge
Wedge gauge
not Known
Hirth minimeter
circa 1920; 1907
Experimental screw diameter measuring machine
1915
O-VEE Screw thread comparator
thickness measurer
circa 1890
Double ended metric screw plug gauge
1907
setting tool
1907
setting gauge
1907
setting dial
1907
ring gauge
1907
screw plug gauge
1907
ring gauge
1907
ring gauge
1907
Micrometer in wooden case
1913-1929
Pneumatic 'Go No Go' gauging machine
1955-1965
Slide caliper for logs
N. K.
Pocket sheet metal gauge
1878-1867 (design)
Early dividing engine (incomplete)
Collimator for measuring flatness of surfaces
1940
Micro 2000 electronic digital metric micrometer
circa 1980
One resolution extender type K02
1973
Sample thread gauge
circa 1917-1919
4" - 8" micrometer
circa 1960