Raindrop Ring set with Mexican Opal Size 5 1/4 Sterling Silver

Vintage 1930 hand made sterling silver raindrop ring that was constructed in the Navajo way, but may be Mexican. It is marked 925. Set with a Mexican opal. The stone has shallow surface scratching, but still has play of color in the sun. The shank is cold chisel split and embellished with hand dropped raindrops. Measures 3/4" wide. Weight: 5 grams. Some tarnish.