Colchester Triumph (and "Dominion") 7.5-inch centre height (Model 15-inch) lathes - early models with "rounded" headstock Mk.1, "Mk.1.5 with safety apron) and the Mk.2 (also sold, in the USA, where it was called the "15-inch" and often with the Clausing brand name with the Model numbers: 6535, 6576, 6577, 6536 and 6537).

Clausing lathes 6535, 6576, 6577, 6536, 6537, 6536. This lathe was sold in the UK as the Triumph Mk.1 and "Mk. 1.5" with Standard and safety aprons. A complete 175-page data pack covering all models from the late 1930s on either separate cast-iron plinths or on the later (early 1950s) full cabinet stand. Instruction and Maintenance Manual and with Exploded Component Parts Pictures.