Diamond Calk Horseshoe Double Ended Adjustable Wrench
This is a nice clean, used, antique double ended adjustable wrench marked "10 IN. DIAMOND CALK HORSESHOE CO. 12 IN. DULUTH MINN DIAMOND TOOL-STEEL DROP-FORGED MADE IN U.S.A." in raised cast lettering on the handle. This wrench is 12.2" long, and has the 10 jaw type on one end, and the 12" jaw type on the opposite end. There is minor wear noted around the jaws, not bad, in very good, usable condition, no rust, with very good jaw alignment, some minor edge dings, some minor pitting on the 12" end mostly. We also note that there are three letters stamped on the 12" end "WHS" Both heads adjust smoothly. We note that 10" end knurl is like new, where the 12" end knurl has some wear, but very good working order. A nice clean vintage wrench from the 1920's-30's era! Diamond Horseshoe Co. and Diamond Calk and Horseshoe Co. are one in the same. The design is so close to that of the Crescent Tool Co., one wonders if the two companies were connected in some way. Yet we find no evidence of this in any records regarding these quality tool making companies. We can't find any history about Diamond Tool or Diamond Calk after early 1950. This is the first one of these that I have seen in this size in several years, quite rare!