Patented devices for drilling out or removing old or broken stay-bolts from the fire boxes of locomotives, without the displacement of any of the intervening parts of the engine
Publisher: J.T. Connelly
Published: 1890
Place of publication: Milton, Pa
Language: eng
Notes: Caption title.

Signed: J.T. Connelly, Milton, Pa.

Estimated date of publication from dated letter from manufacturer attached to OONL copy.