Estate Sale 10 Karat Yellow Gold and Silver Atocha Coin Boat Wheel Pendant

Recently acquired from an estate sale
Pendant is crafted of solid 10 karat yellow gold with a silver Atocha coin
Boat wheel and bail are 10K, Atocha coin is silver
Measures 1.46" (37.10mm) top to bottom, including bail and 1.13" (28.70mm) left to right
Weighs 5.30 grams
Marked 10K on bail