A catalogue and price-list of drawing instruments (1892)
Alteneder, Theodore & sons, Philadelphia. [from old catalog] · [Philadelphia, T. Alteneder & sons] · leaf 28
erationis invaluable, while for all circles over 6 or 8 inches radius it makes the BeamCompass a handier tool than the ordinary dividers. PHILADELPHIA. 23 Graduated Bars for Beam Compasses. When desired, we furnish a graduated bar by which distances can be con-veniently and quickly set off. Two…
Drawing instruments
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![An illustration from [Graphophone patents] (1878)](https://img.insideoutlibrary.com/img/200/ia-graphophonepaten15unit-521-297.webp)
