Convert from iron to verge

Unit Definition (iron)
The iron is a traditional unit measuring the thickness of leather used in making shoes, especially the soles of the shoes. One iron is equal to 1/48 inch (0.5292 millimeter), so a sole 1/4 inch thick is described as "12 iron".

Unit Definition (verge)
The verge is an old name for the yard, taken from the Latin word virga for a twig or stick. In modern French, verge is the customary word for the English yard.