A wet Cylinder transfer, or ghost, is usually a much more detailed version of image transfer than a Wet Sheet transfer or ghost. It is extra ink actually on the printing cylinder as opposed to some ink not dried on a sheet when the next sheet gets stacked on top. They are some of the coolest images out there. Ask Val Kehl to share his E127 Sam Rice. The image on the back is almost as nice as the image on the front! Wet sheet transfers are things like the red box on 1933 Goudeys appearing on the backs of many of the cards, or this beauty (In the interest of full disclosure it's in our current auction)