This old tool was probably run by foot power. The board measures 16 5/8" long x 5" wide x 3/4" thick and the grinder is 7 1/2" wide x 8 1/2" tall. The grinding wheel is 4" across and the belt wheel is 4 3/4" across with an 1/8" trough for belt. There is an old sponge in the trough of the grinder and I'll leave it there, although it may fall out in shipping. The grinder spins freely as does the wheel. 

I did not find a maker's mark on the tool but it may be there and I just didn't know it. I believe I can take the grinder off the board if you don't want it for shipping purposes. All patina is original, I did not clean anything. It weighs 4 pounds 13 ounces and will ship via USPS ground at 6 pounds 8 ounces.