Kearney & Trecker Model 2D Rotary Head Milling Machine. Not a manual but a detailed Catalogue that explains the working of the machine and how to employ it. 18 pages.
 
 

Kearney and Trecker Model 2D Milling Machines (Rotary Head type): Instruction and Maintenance Manual - later full edition with Appendix for power drive to the knee and revised lubrication instructions.

Kearney and Trecker Model 2D Milling Machines (rotary head type): Parts Manual as Sectional Drawings.

Adcock and Shipley 2, 2B and 2D Horizontal Milling Machines. Maintenance and Operator's Instruction Manual with sectional drawings of mechanical components and circuit diagrams