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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 649
5115. (Horizontal Sighting) 5114, Convertible Architects Level, like No. 5M0, but withextra Removable Axis to adapt Telescope to sightingvertical lines. Instrument complete, with MetalTrivet, Plumb Bob, etc., in Polished MahoganyBox, and with Hardwood Tripod . . . each, $60.00 5115. Convertible… … 5117. (Sighting a Vertical Utf] 511fi. Convertible Architects Level, extra Removable Axis,like No. 5114. but with Compass, like No. 5112, (onpage «50) Instrument complete, with Metal Trivet,Plumb Rob, etc., in Polished Mahogany Box, andwith Hardwood Tripod each( $75 ^ 5117. Convertible Architects*…Artists' materials · Drawing instruments · Paint
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