This is an interesting coaster for teapots, wine bottles, and anything else that might drip on your counter. It is a metal tray with a felt pad and an elastic and chain strap to firmly hold the coaster on. Erista brand. Marked D.R.P. (Deutsches Reichspatent) Made in Germany.
This one is in good unused condition with its original box. The box shows wear and discoloration / staining, the coaster shows minimal wear from age. The coaster measures 6 1/2" in diameter.