Tri Fold MCM Picture Frame Gold Tone 3 x 4 1/2 inch Size

Tri fold MCM picture frames. Gold Tone metal. Little bit of design on the frames. Glass panes. Each frame holds a picture the size of 3 x 4 1/2 inches. Pre-owned. Minimal wear. Along the top metal edge there is a slight darkening of the metal. I couldn't seem to catch it on the picture.