Bar of steel made by Thomas-Gilchrist process at Blaenavon Iron Works, and bent cold Bar of steel made by Thomas-Gilchrist process, bent cold before 1889
Cake of blown metal and cinder from the Blaenavon Works, South Wales, produced in the Thomas-Gilchrist process. Fragment of Metal and Cinder from Iron Making, 1878 1878
Pig-iron used to make no.3 steel at Blaenavon Iron Works, by the Thomas-Gilchrist process Sample of Pig Iron from Blaenavon Iron Works, 1878 1878
print. engraving. Iron works at Blaneavon. [ie, Blaenavon] / Published March 1. 1800. by Cadell & Davies, Strand. / Sir Richd. Hoare. Bart. delt. / W. Byrne Sculpt. Engraved Print Entitled 'Iron Works at Blaenavon', 1800 1795-1805
Specimen of steel produced by the Basic or Thomas-Gilchrist process, 1887, 1" diameter rod tied in a knot Specimen of steel produced by the Thomas-Gilchrist process, 1887 1887
Square bar of no.3 steel, made at Blaenavon Iron Works, bent cold Sample of Steel from Blaenavon Ironworks, 1878 1878