Summary

Photograph is located in an album: Volume No.1: 'Views of Factories and Branches', page 31. This is one of 25 albums that provide detailed visual documentation of the activities of the McKay enterprise.

This image forms part of the extensive McKay Sunshine collection which includes images, film, objects, trade publications and oral histories.

Description of Content

'Case Hardening Dep't: March 1925: Case Hardening Department at the Sunshine works. Case hardening was done by plunging heated parts into the quenching dip, usually an oil bath. Note the leather apron worn by the worker to prevent acid burns.

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