Vintage Silver Tone Chain Necklace with Medallion Pendant

Preloved vintage silver tone chain necklace with a 1-inch medallion pendant, from the late 80’s-early 90’s period. I’ve had it for years and it hasn’t tarnished! It is therefore possible this is made of stainless steel. Durable and easy to wear with a secure lobster claw clasp closure. Photos show it in its actual condition, as well as approximate measurements.