Barber-Colman 6-10 Gear Hobbing Machine Parts Manual
Barber-Colman 6-10 Gear Hobbing Machine: Parts Manual as Sectional Drawings.
Barber-Colman 6-10 Multicycle Control Manual
Barber-Colman Multicycle Automatic Control for the 6-10 and 16-16 Gear Hobbing Machines: Operator's Instruction Manual.