Watt's end measuring machine
1776
Dividing engine for making sextants and octants
Made late 1700s, modified 1800s
Lucien Sharpe sheet metal gauge
circa 1850
Palmer's micrometer (replica)
circa 1848
Maudslay 's Lord Chancellor bench micrometer
1805
Micrometer type mechanical comparator
1855
Whitworth standard wire gauge
1869 to 1897
Set of Whitworth distance gauges (end gauges)
1860-1895
Three gauges, tool for securing interchangeability in photographic lenses and two samples of same.
1892
Circular instrument dividing engine
1778
Caliper stringing gauge
Girth tape
Pair of Carl Zeiss dial type measuring gauges
bench micrometer
1881
Right-angle gauge, incorporating spirit level
Set of Johansson gauge blocks, c 1900.
1896-1918
Slocomb digital micrometer
1920-1939
frame micrometer
1826-1894
Miniature micrometer by Borletti of Milan in a small pocket
Pair of Vee supports for Whitworth measuring machine (M.1671)
"0-2" Bench Micrometer
1944
Screw pitch caliper with a Boxford dial gauge
1942
digital readout micrometer
pat 1893.
Direct digital display micrometer made by Brown and Sharpe
1922-1928
early metric micrometer
1878
Combined Vernier callipers and depth gauge
1842-1846
Girth tape
internal and external gauges
1835-1865
Ship's plate thickness measuring gauge with vernier scale.
not known
Wire diameter gauge
Not known
Eccentric wire-gauge
Vernier caliper for workshop use
circa 1830
American Standard Wire Gauge
circa 1858
Thickness gauge by Weifs
Not known
Surface plate; very smooth surface produced by lapping
1919
Hirth minimeter
circa 1920; 1907
Experimental screw diameter measuring machine
1915
'Holdens' minimeter comparator
1917-1919
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
Automatic micrometer
1850-1900