Paperbacks of the “Pulp” genre, like this one, are highly collectible, strange as that might seem to the non-yardsaler. I think I bought this one for 25 cents, and sold it for a lot more.
This little figurine tells a very big story. Apparently American GIs (aka Kilroy) left a lot of little somethings behind after the World War II occupation of Europe.
I almost missed him. As I was leaving the yard sale, I took one last look, and there he was, poking out from underneath a pile of junk. 
Odd Yard Sale Finds 