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 15” lathes Models 6574, 6575, 6534, 6535, 6576, 6577, 6536, 6537 (these lathes were sold in the UK as the Colchester Triumph Mk.1 in the 1950s and 1960) 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.