Lucien Sharpe sheet metal gauge
circa 1850
Palmer's micrometer (replica)
circa 1848
Dividing engine for making sextants and octants
Made late 1700s, modified 1800s
Maudslay 's Lord Chancellor bench micrometer
1805
Direct digital display micrometer made by Brown and Sharpe
1922-1928
early metric micrometer
1878
Girth tape
Micrometer in wooden case
1913-1929
Automatic micrometer
1850-1900
Pneumatic 'Go No Go' gauging machine
1955-1965
Pocket sheet metal gauge
1878-1867 (design)
digital L.C.D. micrometer
circa 1981
Pair of Carl Zeiss dial type measuring gauges
Set of Johansson gauge blocks, c 1900.
1896-1918
Slocomb digital micrometer
1920-1939
Miniature micrometer by Borletti of Milan in a small pocket
Brass micrometer type gauge comparator.
Collimator for measuring flatness of surfaces
1940
Early dividing engine (incomplete)
One resolution extender type K02
1973
Sample thread gauge
circa 1917-1919
Component, horizontal optical comparator
One remote interferometer assembly
1973
One linear interferometer assembly Ident.10703A
1973
Accessories for a horizontal optical comparator
Accessories for a horizontal optical comparator
Circular Instrument Dividing Engine
1919
Case and accessories for horizontal optical comparator
Three gauges, tool for securing interchangeability in photographic lenses and two samples of same.
1892
Differential Screw Micrometer and case
1801-1811
Circular instrument dividing engine
1778
Girth tape
Caliper stringing gauge
bench micrometer
1881
Right-angle gauge, incorporating spirit level
frame micrometer
1826-1894
"0-2" Bench Micrometer
1944
digital readout micrometer
pat 1893.
Combined Vernier callipers and depth gauge
1842-1846
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
'Holdens' minimeter comparator
1917-1919
O-VEE Screw thread comparator
thickness measurer
circa 1890