The Vintage Dietzgen No. 1718 Opisometer Drafting Tool is a rare and sought-after item for collectors of drafting tools. This measuring wheel, manufactured by Alvin in Switzerland, is a classic piece of engineering equipment that would have been used by professionals in the drafting and surveying industry. The tool comes in its original box, adding to its appeal and preserving its historical significance. Its craftsmanship and functionality make it a valuable addition to any collection of drafting tools or vintage instruments.