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This offering is for a brass tool intended to be used by designers, architects, or engineers to aid in preparing complex drawing. It is made from solid brass and is in original unpolished condition. The piece measures 4 5/8 inches in diameter and is about 1/64 inch thick. It has an American patent for Dec. 5, 1885 issued to the Polygraph Company of Philadelphia. It is also stamped with a European patent dated December 1886. The piece would have been used to facilitate the production of precision drawings with templates for circles, lines, angles, triangles and all sorts of exotic shapes. It resembles a protractor in some respects, but it is much more than that with many drawing capabilities. The surface is stamped with multiple markings for angles and a variety of other measurements. The piece is in excellent condition and is ready to use, if the new owner wishes to do so. It is a wonderful item from a long-ago time before computer aided design systems made it so easy to produce precision drawings. What a wonderful item to display in your office or studio.

You can shop with confidence at Sweetpea Cottage. YOUR SATISFACTION IS GUARANTEED. If you wish to return your purchase for any reason at all we will gladly refund your purchase price minus shipping. Within three days of receiving your item, simply notify us by email that you wish to return it. When we receive it returned in original condition in a timely fashion, then we will refund the full purchase price. The buyer will be responsible for return shipping.

ITEM ID
CBrPoly-1478
COLOR
Gold
ITEM TYPE
Antique

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Brass Polygraph Engineering, Architectural, Designer Tool, 1885, Philadelphia

$84 USD SOLD


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