Burdett 70, 75 and 77 "Rapidgrind" Surface Grinders Mk.1 (identifiable by flat side faces to the grinding wheel cover, sloping sides to the stand, a small trapezoidal-shaped door beneath the central control wheel and the three main control wheels in a diagonal line across the face of the machine).

Fellows 7 and 7A Gear Shapers including 7, 71, 72, 75, 77, 712, 715, 725, 775, 7125, 7A, 71A, 75A, 77A, 715A, 725A, 775A, 7125A: Detailed Operator's Instruction Manual.

Fellows 7 and 7A Gear Shapers: Parts Manual as detailed Sectional Drawings (Revised Edition that incldes data from 1953 onwards).

Landis (by Fay-Scott Landi) "Landis Chainstich McKay Sticher" Model 77. Operator's Instruction and Maintenance Manual and Parts as Photographic Plates.

Burdett Elliott 70, 75, 77 "Rapidgrind" Surface Grinders Mk.2 (identifiable by a round cover over the grinding wheel, two main controls wheels one above the other on the face of the stand and to the right an "oval" shaped cover with a single control knob positioned centrally near the bottom ).