This vintage silver design of a seahorse motif is from the maestro, Pedro Castillo. He joined William Spratling as a young apprentice in 1933, after Spratling opened the Las Delicias workshop. Castillo would work under Spratling's tutelage for nine years before following fellow silversmith and notable maestro, Hector Aguilar to the Taller Borda. Castillo would work with Aguilar for several years beginning as a platero and later supervising the Taller Borda. Ultimately, as was the common pattern for great talent, Pedro Castillo began his own workshop in 1948. Castillo, Spratling, Aguilar, and other notable silver maestros would maintain close ties to each other.

At 48.5 grams this vintage sterling silver bracelet of seahorses features a warm patina and is a solid weight. The hallmark dates this piece to be from 1948 or later as reflected in Hougart's book of Mexican hallmarks on page 40.