Cyclopedia of mechanical engineering; a general reference work. Editor-in-chief Howard Monroe Raymond. Assisted by a corps of mechanical engineers, technical experts, and designers of the highest professional standing (1908)
American School (Chicago, Ill.), Raymond, Howard Monroe · Chicago American Technical Society · leaf 51
Fig. 56. Marking Gage, illustrated in Fig. 56, the head is reversible.The flat side of the head is used for ordinary straight work, whilethe reverse side, having the brass face with two projecting ribs,
Mechanical engineering -- Dictionaries
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