This listing is for a set of 2 preowned vintage 1977 Enesco ceramic coffee mugs with a relief design that shows a cute squirrel head peeking out of a "tree" on one side and a squirrel tail sticking out of a hole in the "tree" on the other side. The cup is actually shaped like a large acorn but it seems as if they're actually peeking out of a nest in a tree. Apparently they were originally part of a Tea for Two set that stacked on a teapot to create a sort of totem pole that ultimately looks more like the suggested tree. The colors are painted by hand and show a little variation. They measure about 3" tall by about 3" wide, not including the handle. There is an ink and sticker label for Enesco. The impressed "M" over the "R" mark signifies the gift and collectibles US company Marks and Rosenfeld who probably commissioned the design. There is unfortunately a hairline crack on one of the cups, as I've tried to illustrate in a few photos. 

Please see the photos for more information and detail.