These frames looked like a reproduction of old ceiling tile. There were very new looking and more of a rusty brown.
I started by painting them with a coat of Old White. Once the paint was dry to the touch, I lightly sanded with 250 grit sand paper. Next I applied Artisan Enhancements Crackle Tex. Once the Crackle Tex was dry, I applied Provence and let dry. I then took 250 grit sand paper and sanded to show a little of the original color and some of the Old White. To finish them off, I applied a coat of Clear Wax followed by a coat of Dark Wax.