I have a large box of old tools that are full of crud, rust and everything else that I keep for when I get too bored and need something to do. Most of this stuff is from estate sales and I have too much to clean and inspect so I just dump the ones I don't know into that box. While looking through a couple I noticed one had company lettering on it. I recognized the W&B but I couldn't make out the other words. After soaking it for a while and starting to clean it, unfortunately the old dull black paint started to come off, I decided to strip it down to the bare metal. Then the company name appeared - Excelsior Supply Co, Chicago. With a quick wiki search I found out who that company was and what they made -
Excelsior Motor Manufacturing & Supply Company was a U.S. motorcycle manufacturer operating in Chicago from 1907 to 1931.[1] It was purchased by Ignaz Schwinn, proprietor of bicycle manufacturer Arnold, Schwinn & Co. in 1912.[2] In 1912, an Excelsior was the first motorcycle to be officially timed at a speed of 100 mph.[3] The Henderson Motorcycle Company became a division of Excelsior when Schwinn purchased Henderson in 1917.[1][4] By 1928, Excelsior was in third place in the U.S. motorcycle market behind Indian and Harley-Davidson. The Great Depression convinced Schwinn to order Excelsior's operations to cease in September 1931.
I think with the W&B logo and some more info on Excelsior, I am dating this 1915 to 1920. The wrench size is 3/4 and 9/16 and measures 9".
Any thoughts on the date appreciated.