Technical supply co., Scranton. [from old catalog] · Scranton, Pa., Technical supply co · leaf 356
4040 4040. Cross Staff Head, octagonal, for Jacobs staff, 24 inches, in case each, $ 3.00 4041. Cross Staff Head, octagonal, for Jacobs staff, with magneticcompass, 3-inch needle, If inches each, 5.00 4042. Cross Staff Head, like No. 4041, with vertical axis and divided circle, to take angles, 3§… … 4045 4045. Mercurial Horizon, iron trough, iron bottle, with screw stopper and funnel cap, glazed metal roof; in polished mahogany-box each, $30.00 ANGLE MIRRORS AND PRISMS 4046. Angle Mirror for angle of 90 degrees each, $ 5.00 4047. Rectangular Prism for angles of 90 degrees, in case each, 5.00…
Engineering instruments · Drawing instruments
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