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).

Strojimport Twist Drill Grinders BNV 75 and Twist Drill Grinder BNV 80. Operation Manual and Parts Manual as detailed Sectional Drawings.

TOS Twist Drill Grinders BNV 75 and Twist Drill Grinder BNV 80. Operation Manual and Parts Manual as detailed Sectional Drawings.

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 ).