I ride a lot and am a stickler for performance and, therefore, carefully adjusted hubs. The adjusting cone on the old Musselman (Elgin, Higgins) rear hubs require a 1 inch wrench. I have never encountered a 1 inch cone wrench... maybe they exist, I don't know. I found this wrench at a bicycle swap meet, - I don't know it's original purpose. It was not open ended but had a 1 inch hex shaped hole in it - box wrench style. I am not much good for "before" pics.... but... This was modified and repurposed into a 1 inch "cone" wrench by cutting away the end and turning into an open end style wrench.