Descriptive catalogue 1914 : Frost & Adams Co. importers and dealers in artists' materials, architects', engineers' draughtsmen's supplies, mathematical instruments and pyrography requisites. (1914)
Frost & Adams · Frost & Adams · leaf 647
irsgraduated Bubble, Object Glass \]i inch with RackMovement, Eye Piece adjustable to focus the cross-hairs. Horizontal circle 3 inch, divided to degreeswith Vernier reading to 5 minutes. A most service-able and compact instrument. Level coraplete.withMetal Trivet, Plumb Bob and Adjusting Pins,… … 5112. 5112 Architects or Builders Y Level. Achromatic Telescope11 inches, with Dust Shade and Cross Hairs. Gradu-ated Bubble, Object Glass \% inch with Rack Move-ment, Eyepiece Adjustment, Compass divided onraised ring to decrees, improved Needle about 3inches. Horizontal Circle 8* inches divided…
Artists' materials · Drawing instruments · Paint
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