Illustrations in hardware manufacture, specimens to show the manufacture of a German silver spoon, with a finished electroplated example

Illustrations in hardware manufacture, specimens showing the manufacture of a German silver fork in six stages, with an electroplated example

Specimen of button spotted coal, 'Pot Bottom', from the deep winning of the 5 feet coal, on the north march of the Estate of Mar, at the village of New Sauchie, Clackmannanshire

Illustrations of Cast & Malleable Iron, Knots tied cold (specimen of Bower's oxydised iron), two wrought iron samples tied in a knot

Small hammer, one of collection of miners' tools as used in Canonbie Colliery

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of anthracite from Scranton on the northern Pennsylvanian coalfield

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of anthracite from Tamaqua on the southern Pennsylvanian coalfield

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of anthracite from Tuscarora on the southern Pennsylvanian coalfield

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of anthracite full of sigillaria from Ransch Creek Mines, southern Pennsylvanian coalfield

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of bituminous coal with mineral charcoal from Mercer County, western Pennsylvania

One of a group of specimens from the Pennsylvania coalfields and elsewhere - a sample of bituminous coal from Smithport, McKean County, Pennsylvania

One of a group of specimens illustrating the dressing and smelting of ores, German method - smelting of lead ore and separation of silver - silver refining - sample of silver of standard purity

A sample of black ironstone, containing about 28% metal, one of twenty specimens illustrating the manufacture of malleable iron from the Farnley Iron Works, Leeds, mid 19th century

A sample of calcined ironstone, in multiple pieces, one of twenty specimens illustrating the manufacture of malleable iron from the Farnley Iron Works, Leeds, mid 19th century

A sample of puddled iron, one of twenty specimens illustrating the manufacture of malleable iron from the Farnley Iron Works, Leeds, mid 19th century

Eight samples of rod iron and seven samples of bar iron, one of twenty specimens illustrating the manufacture of malleable iron from the Farnley Iron Works, Leeds, mid 19th century