Arsenical cobalt or skutterudite, from Skutterude, near Modum, Norway
before 1889
Copper ore from the Bell Mine
before 1889
Cupriferous sandstone from Schweinkopf
before 1889
Cobalt ore from New Caledonia
before 1889
Specimen of harmonic turning
1908
Solid ivory specimen with triple helices
Specimen of gold leaf on glass
Specimen of harmonic turning
1908
Wood and ivory specimen with eight-fold helices, made with turning lathe
Specimen of "Toprina" single cell protein
1977
A specimen of wiped joints in one piece being two tees
Specimen of harmonic turning
1908
Ivory specimen with quadruple helices
Specimen welded copper piping
Ivory specimen
Sample, one of two
1872
Pig fistula in liquid paraffin
Pig stomach in liquid paraffin
Alloy of lead containing five per cent of aluminium
before 1889
Lignite from Sasso Forte
before 1874
Iron ores from Cherbourg
before 1889
Specimen of 79% Fe-Mn, 1882-1884
1882-1884
Steel specimens showing the effects of fracture and various ways of heating and cooling
before 1889
"Trenchard" coal, Forest of Dean
1843-1889
Top and bottom coal
1843-1889
Prepared composition of Juleff's Cornish crucibles
before 1889
"Arley Mine" coal, Wigan, Lancashire
1843-1889
Tested clays from Rockingham Clay Works, Hampshire
before 1889
Petroleum oil cannel coal, Bathgate, Wallerawang, New South Wales, Australia
before 1873
Iron ore from Providence
before 1889
Coke used at the Thondu Iron Works, Glamorganshire
before 1889
Hanoverian peat
1843-1889
Specimen illustrating Sherardizing process
Light coke, from South Staffordshire thick coal
before 1889
Light coke from the Heathen coal. South Staffordshire
before 1889
Nant-y-glo and Blaina coal
1843-1889
'Isthmus' specimen bar, used with the Hopkinson yoke
1885
Hartley kerosene shale, New South Wales, Australia
1843-1889
Iron ore from the Carboniferous Limestome of Pembrokeshire
before 1889
Alloy of nickel and copper
before 1889
Molybdate of chromium. Prepared by Dr. Percy in 1851
before 1889
Undulating markings on brass
1848
Orpiment from France
before 1889
Rolled sheet of nickel
before 1889
Alloy of iron and tungsten, containing 9.5 percent of tungsten
before 1889
Ore slag from first fusion
before 1889
Flue cinder from the Low Moor Iron Works, 1876
before 1889
Cannel coal from Styria
before 1876
Black shale
1843-1889
