Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc. / Kolesch & Company. (1907)
Kolesch & Company · Kolesch & Company · leaf 98
m. With ball-pole and test plate fitted into morocco case, with lock, in such amanner that the instrument may be laid in, set to any proportion.If so desired, this Planimeter can be furnished divided into decimalsof an inch, or foot, or any other desired scale. These Planimetersare of the best… … 2945 Polar Planimeter, German silver, with Adjustable Tracing Arm,about 9 inches Ion?, for measuring areas. With special arrange-ment for determining the mean height of Indicator Diagrams.Needle pole, test plate and directions in morocco case each, $35.75 For Indicator Scales, see list of scales.…
Drawing instruments · Surveying instruments
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