Northrop, E. B.; Chittenden, H. A., Jr. (ed.) / The Wisconsin lumberman, devoted to the lumbering interests of the northwest
Yale Lock Manufacturing Company. Progress of the manufacture of locks and of bronze ornamental hardware--description of one of New England's leading manufactures, pp. 377-386 PDF (3.1 MB)
384 The Wisconsin Lymb an. YALE PRISON LOCK.
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