Old hanging wall box in grungy green paint over older blue paint. It has three heart cutouts in the top and four other hearts outlined by small holles through the wood, two in front and one on each end. It has old cut nails, details in last photo. The hearts appear to be original to the piece since there is blue paint on the inner surfaces.
It measures ~14 3/4" tall, 9 inches wide by 4 1/4" deep.