I found my grandfather's old collection of straight razors. He was the only barber in a small, Canadian town. I love all the razors - 5 of which are still in the great old boxes. However, in this collection, I found this strange piece of wood which held a curved piece of glass. The only thing I can think of (and I tried to find out on the internet) is that perhaps it was for putting a finishing edge on the blades, maybe by using a paste?
What do you guys think?