Newall Jig Borer No. 1, No. 2, 2436 and 2443. Manual
Newall Jig Borer No. 1 Operating and Maintenance Manual with Electrical schematics. The Newall No. 1 was renamed the Model 2436 and then, with just a greater table capacity, as the Model 2436 Mk. 2 and then - finally - re-numbered as the Model 2443.