vintage brass curtain rings, 60s 70s retro big round curtain rings lot

Lot of 26 large round brass curtain rings, 60s or 70s vintage. Size is 2 3/4" in diameter over the outside of the ring, and 2 1/4" inside the ring.

These are tarnished, but are entirely brass (not brass plate over steel), so they'd probably clean up to bright brass with polish and enough elbow grease!