John Schulz's Wonderful One of A Kind, Hand-Engraved 24 Inch Metal Folding Rule, Detroit USAOne of my very favorites of the week, and definitely among my very favorite tool finds ever. This is a one of a kind 24 inch folding ruler, proudly signed by the John Schulz of Detroit, USA who made it, and who I might guess was a machinist of some sort. I believe it is made of nickel, very shiny, with incised lines marking every 1 8th of an inch, and the inches marked with numbers written out in tiny dots. A really sweet combination of sleek form and