Stoneware Oil Lamp

I picked up this oil lamp and need help identifying it. I have searched and searched but came up empty. It measures 7-1/2 inches to the top of the handle. It does not appear to be very old but it does have a mark on the bottom. To me it looks like a W inside of a C inside of another C. The mark to the right of that looks like an M with a line under it.

Any help would be appreciated.