Four and a Half Coats! Vintage Inkwash Drawing on Card with Another on Reverse

Something super satisfying about these coats, and I love that the odd one, which looks like mink to me, is only half in view, as if these coats might continue on forever just outside the frame--or as if to say what we really want may remain forever out of reach. Unsigned other than the two words "My Mel" on reverse, I really feel like this was done by someone known; it has a bit of a Raymond Pettibon feel to me, especially the flip side.

11 1/4" x 7 1/8" Flag to lower right corner. Otherwise very good condition.