Shore Scherascope (portable hardness tester) by Schuhandt and Schutte, 1913 Shore Scherascope (portable hardness tester) 1913
Portable Rockwell hardness tester, recovered from British Rail Engineering Ltd. Swindon Portable Rockwell hardness tester, British Rail Engineering Ltd
Brinall hardness testing machine with 5 weights. Manufactured by JW Jackman & co, Manchester. Brinall Hardness Testing Machine 1918
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
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
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
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