Beautiful antique W F STANLEY lifting Nib Jointed Drawing Pen
This 5-7/8" steel, brass, and bovine drawing pen has a spring inside the point to draw the deals tips of the point together when the screw is tightened to make a narrower line. The point is also jointed, so when the screw is removed, one side of the point may be opened to a 90° angle.
William Ford Stanley (1829–1909) began making mathematical instruments in London in 1853. In his influential 1866 volume on the construction and use of drawing instruments, he called this form of drawing pen a "lifting-nib" or "jointed" pen. It was supposed to be easier to clean than a standard drawing pen.
Some examples of this pen are in the NATIONAL MUSEUM OF AMERICAN HISTORY , SCIENCE MUSEUM LONDON
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Product code: Antique W F STANLEY lifting Nib Jointed Drawing Pen very rare museum deals piece.