Colchester Student, Master and Dominion Lathes Mk 1 and "Mk. 1½" (and other versions, by Clausing the 13 x 24 and 13 x 36 etc). Round-headstock model but with either a "sliding-lever" on the apron that lifts into either one of two slots to engage the power feeds - or with a single, centrally-mounted round control lever. The differences between Mk.

Colchester Student Lathe Mk.1 Instruction and Maintenance Manual and Exploded Component Parts List. German Edition. The quality of this manual is not to our usual high standards; however, it is readable.

Colchester Triumph 2000 Mk. 1 and Mk. 2. (also for the Liberty 1340, Muller ET Pesant MPS180 and Clausing 15-inch Lathe Models 8030, 8031, 8032, 8033). Full 110-page Comprehensive Instruction & Maintenance Manual & Illustrated Parts Manual as Exploded Diagrams with 17 Electrical Schematics. Text supplements in: Finnish, French, German and Swedish.

Colchester Mascot "Mk. 1" 1950s to early 1960s "round-headstock" model. Instruction and Maintenance Manual, Illustrated Parts Manual as Parts Pictures and a copy of the Sales & Technical Specification Catalogue. This lathe was sold in the United States as the Clausing "Mammoth" 17-inch Models 6582, 6542,  6594, 6583, 6554 and 6543.

Harrison Lathe AA Mk. 1 ( "Round" styling and identical to the Colchester Chipmaster) A comprehensive Data Pack with early and late editions of the Instruction and Maintenance Manual and both Parts Manuals as exploded component diagrams. Covers all models with Imperial or Metric gearboxes and includes electrical, variator and drive differences.