"Ultimately the production of Coes branded wrenches was moved to the Billings & Spencer Co., Hartford, CT facility and when this happened, the size range of both the knife and steel handle wrenches was reduced considerably. Initially the Steel Handle wrench was offered in the 10, 12, 15, 18 and 21in. sizes while the Knife Handle wrench was offered in the 10in. size only. Gradually the range diminished until the 1962 catalog showed only the 10in. steel handle. Thus the saga of the Coes wrench finally ends after somewhat more than 120 years of production."
From The Brothers Coes and Their Legacy of Wrenches, by Herbert E. Page, 2004, page 82, published by Sunset Mercantile Enterprises