Thread: 3 in 1 strop - How should I use it?

Hey, fellow gentlemen, I bought this strop from ebay. It's an Illinois Razor Co. 3 in 1 strop. It has a sharpen, canvas, and finish side as you can see in the pics. My question is when/how do I use the sharpen side? It's on the opposite side of the leather. Any information you guys can give me will be much appreciated.

Thanks!