Heald 271, 272, 274, 275 & 276 Internal Grinders Manual
HEALD (Cincinnati) 271 and 272 Plain and Toolroom Models and Heald 274 Universal and
Heald 275 and 276 Extended Bridge Internal Grinding Machines: Instruction and
Maintenance Manual with Parts as Sectional Drawings and Hydraulic Circuit Schematics.
Heald 271 and 272 Size-Matic and Gage-Matic Internal Grinders Manual
HEALD (Cincinnati) 271 and 272 Size-matic and Gage-Matic Internal Grinding Machines: Instruction and Maintenance Manual with Parts as (improved) Sectional Drawings and a Hydraulic Schematic.