Artist trading cards original Collage with Bird. and collaged ephemera.ACEO’s are always 2 ½ X 3 ½, the size of a Trading Card, and are valued as collectors items or small and reasonably priced original works of art. I created it on acid free heavy watercolor paper. It can be framed or displayed on a small table easel. It will come inserted in a 5 x 7 black heavy stock so it will fit perfectly in a frame with a 5 x 7 opening.