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Herbert pendulum hardness tester, made by Spriggs

Portable Rockwell hardness tester, recovered from British Rail Engineering Ltd. Swindon

Portable Rockwell hardness tester, British Rail Engineering Ltd

Shore Scherascope (portable hardness tester) by Schuhandt and Schutte, 1913

Shore Scherascope (portable hardness tester)

1913

A portable Brinell hardness tester

A portable Brinell hardness tester

Herbert pendulum hardness tester, c. 1925

Herbert pendulum hardness tester, c. 1925

1925

Poldi hardness tester, in leatherette case with instructions, 1935, with 9 spare test pieces and instrument head in leather wallet, c.1930, from BR Materials Engineering Group Laboratory, Derby

Poldi harness tester, British Rail Materials Engineering Group

1935

Pendulum hardness tester, Herbert's, cased, by Edward G. Herbert, Manchester, c.1910, from BR Materials Engineering Group Laboratories, Derby.

Pendulum hardness tester, British Rail

1905-1910

Vickers diamond hardness tester by Vickers-Armstrongs, Crayford, Kent. M/C no.250775, with box containing weights and accessories, c. 1950

Vickers diamond hardness tester by Vickers-Armstrongs

Rockwell Hardness Tester, c. 1930

Rockwell Hardness Tester, c. 1930

1930

Brinall hardness testing machine with 5 weights. Manufactured by JW Jackman & co, Manchester.

Brinall Hardness Testing Machine

1918

Brinell type hardness tester with weights for 500 and 3,000 kg, by W. & T. Avery Ltd. 1921

Brinell type hardness tester with weights for 500 and 3

1921