Are Dark Tide Relics shipwreck coins authentic?

Every shipwreck coin and artifact sold by Dark Tide Relics is authenticated and accompanied by provenance documentation from recognized authorities such as the Mel Fisher Maritime Heritage Society, NGC, or PCGS, plus a permanent digital provenance record via TreasureCheck.ai.

Which shipwrecks does Dark Tide Relics specialize in?

Dark Tide Relics curates artifacts from the Nuestra Señora de Atocha (1622), Santa Margarita, the 1715 Spanish Treasure Fleet, El Cazador (1784), SS Central America (1857), Maravillas, Concepción, and other documented Spanish colonial and American Gold Rush wrecks.

How are orders shipped?

All orders ship via FedEx, fully insured and with adult signature required on delivery.

Does Dark Tide Relics buy shipwreck coins from collectors?

Yes. Dark Tide Relics actively acquires authenticated shipwreck coins and collections. Submissions can be made through the Sell Coins program at darktiderelics.com/sell-coins.

What Makes an Atocha Coin Authentic

The Mel Fisher tag is only the beginning. Here's how a true Atocha 8 Reales is verified — from shield quartering to sea-cast surface.

Every authentic Atocha 8 Reales carries a story written in metal. The first signal is the original Mel Fisher salvage tag — a small paper card with a TSI number, denomination, and assayer. But the tag is just the start.

Real Atocha cobs show the Habsburg shield on one face and a Jerusalem cross on the other. Even when worn, the quartering of Castile and León remains visible at the right angle. Surfaces have a chalky, sea-cast texture — not the polished sheen of a modern strike.

Weight matters. A full-weight 8 Reales sits near 27 grams. Mid-grade survivors land lower, with one face often more legible than the other. That asymmetry is the wreck's signature.

When you hold one, you're holding a piece of the 1622 fleet — silver that crossed the Atlantic, sank off the Marquesas Keys, and returned 363 years later.