Wolters (Peter Wolters) Type 2U5 Two-wheel Lapping Machine. Operator's Instruction Manual with A3 drawings showing the construction of the machine and a set of 3 Electrical Schematics.

Wolters (Peter Wolters) Types FL8 and SL12 one-wheel Lapping Machines. Operator's Instruction Manual with A3 sectional drawings showing the construction of the machine,
and pneumatic and electrical schematics.