Proportional dividers are ancient tools, dating back to Roman era, though as late as 1955 some thought they were a Renaissance invention. The Alvin 450 is really handy when making miniatures, like the triangle and engineer's square above, that I made for Fritz Otto Buchbinder. They allow you to quickly see and measure what a…
Jeff Peachey Tools
Blog – Peachey Conservation
scissors – Peachey Conservation
dividers – Peachey Conservation
14 Inch American Oak Proportional Divider, Scale Divider, Drawing
bookbinding tools – Page 13 – Peachey Conservation
National Museum of American History
scissors – Peachey Conservation
Proportional Dividers
National Museum of American History