The Spanish silver cob, assayer “D” from Mexico City, dating between 1618-1634, is a remarkable numismatic specimen renowned for its historical significance and exceptional quality. Crafted during the height of Spanish colonial rule, these coins were a cornerstone of global trade, circulating throughout the Spanish Empire and beyond. The cob’s irregular shape and stamped markings bear witness to the manual minting techniques of the era, adding to its allure among collectors. The piece’s rarity and provenance elevate its value, especially within the private collection of renowned explorer and U-boat hunter Darrell Miklos. Its presence in such a distinguished collection underscores its importance as a tangible link to the past and a testament to the enduring fascination with maritime history and treasure hunting.
When these ships sank, they often took their precious cargo to the ocean floor. Over the centuries, many of these wrecks were discovered, and their sunken treasures were recovered by salvagers. Among the most sought-after items were the coins that constituted the currency of the Spanish Empire.
Shipwreck silver coins hold a unique place in maritime history, reflecting the economic and cultural exchanges of past centuries. Among the most common denominations recovered from shipwrecks are the 1/4, 1/2, 1, 2, 4, and 8 reale coins.
1/4 Reale:
The 1/4 reale coin, also known as a “four bits” or “quartilla,” was a small denomination of Spanish colonial currency.
These tiny coins typically weighed around 0.8 grams and measured about 14 millimeters in diameter.
Despite their small size, 1/4 reale coins were used in everyday transactions for small purchases.
Due to their low intrinsic value, they were often lost or discarded, making them relatively rare finds today.
The design of 1/4 reale coins typically featured the Spanish coat of arms on one side and a cross on the other.
1/2 Reale:
The 1/2 reale coin, commonly known as a “half real” or “medio real,” was another small denomination coin widely circulated during the colonial period.
These coins weighed approximately 1.6 grams and measured around 15 millimeters in diameter.
Like the 1/4 reale, 1/2 reale coins were used for small transactions in daily commerce.
They were often cut into smaller pieces, known as “cut pieces of eight,” to make change for smaller purchases.
The design of 1/2 reale coins typically featured the Spanish coat of arms on one side and a numeral indicating the denomination on the other.
1 Reale:
The 1 reale coin, also called a “real” or “piece of eight,” was one of the most widely circulated coins in the Spanish colonial monetary system.
Weighing approximately 3.4 grams and measuring about 20 millimeters in diameter, these coins were of moderate size and value.
The term “piece of eight” refers to the practice of dividing larger denomination coins, such as the 8 reale, into smaller pieces for smaller transactions.
The design of 1 reale coins typically featured the Spanish coat of arms on one side and the Pillars of Hercules (representing the Strait of Gibraltar) on the other.
2 Reale:
The 2 reale coin, also known as a “two-real” or “dos reales,” was a common denomination in the Spanish colonial monetary system. These coins weighed approximately 6.8 grams and measured around 25 millimeters in diameter. 2 reale coins were valued higher than smaller denominations like the 1/4 and 1/2 reale but lower than the 4 and 8 reale coins. They were used for various transactions, from everyday purchases to larger trade dealings. The design of 2 reale coins typically featured the Spanish coat of arms on one side and a cross on the other, similar to other denominations in the colonial currency system. Including the 2 reale denomination provides a more comprehensive understanding of the range of coins commonly found among shipwreck treasures, highlighting their significance in both local and international commerce during the colonial period.
4 Reale:
The 4 reale coin, known as a “four-real” or “four bits,” was a medium-sized denomination in the Spanish colonial monetary system.
These coins weighed around 13.5 grams and measured approximately 29 millimeters in diameter.
4 reale coins were valued higher than smaller denominations and were commonly used for larger transactions in both domestic and international trade.
The design of 4 reale coins usually featured the Spanish coat of arms on one side and a cross on the other, though variations existed.
8 Reale:
The 8 reale coin, often referred to as a “piece of eight” or “Spanish dollar,” was the cornerstone of the Spanish colonial monetary system.
Weighing approximately 27 grams and measuring about 38 millimeters in diameter, these large silver coins were highly valued.
8 reale coins were widely accepted and circulated not only in Spanish territories but also in trade networks around the world.
The design of 8 reale coins typically featured the Spanish coat of arms on one side and the Pillars of Hercules on the other, with the denomination expressed as “8R.”
Shipwreck silver coins, regardless of denomination, provide valuable insights into the economic and maritime history of the colonial era. Recovered from the depths of the ocean, these coins serve as tangible artifacts connecting us to the past and the global networks of trade and commerce that once spanned the seas.
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