New Britain (Britain-Gridley) Model 40, 42, 60 and 61 Four and Six Spindle Automatic lathes Setting Up and Operating Manual.

New Britain (Britain-Gridley) Model 61 Parts Manual as detailed Sectional Drawings.

DUFOUR (Gaston Dufour) 61 Milling Machine. Sales and Technical Specification Catalogue. 6 pages.

Dufour (Gaston Dufour) Type 61 Milling Machine: Operator's Instruction and Maintenance Manual with Parts Manual as Sectional Drawings and Electrical Diagrams.

Matrix (Coventry Gauge and Tool Company) No. 61 Gear Grinding Machine. Operating Instructions.

New Britain Automatic Model 61: Operator's instruction Manual.

New Britain Automatic Model 61: Parts Manual as Detailed Sectional Drawings.

New Britain Automatic Model 61: Tool Holders Manual. Dimensioned Drawings.

New Britain Automatic Model 61- 15/8": Operator's Instruction Book.