Vintage Sterling Silver Cats Eye Repousse Star Patterned Disc Earrings Tabra?

I bought these beautiful earrings at an estate sale with another pair that were also made by Tabra, however, this pair was not signed, which is unusual, so I cannot guarantee that they are Tabra. I can guarantee, however, that they are beautiful, unique earrings in sterling silver worked in the repousse fashion, punching the stars out from back to front and then texturing the front for additional interest. The stone is domed and is a Chrysoberyl, commonly known as cats eye, and is surrounded by a slim accent of brass to set off the stone against the sterling silver. These measure about an inch and a half in diameter.