Potosi Cob Coins, Potosi mint Cobs

New World Treasures
Spanish Colonial Coins and Artifacts
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Spanish Cob Coins
Potosi Mint

Cob coins were minted at the Potosi mint from 1574 through 1773, when they were permanently replaced by the machine struck milled bust dollar in 1773. Interestingly, cobs continued to be struck at Potosi well after cob production ceased at the other colonial mints, and in fact, continued to be manufactured in parallel with the mints own machine struck milled pillar dollar between 1767 and 1770. The mint began operations striking the shield type cob variety, but the famous 1640's Potosi mint scandal lead to a switchover from the shield type to the pillars-and-waves type cob in 1652. Dates first appeared on Potosi cobs in 1617, but are seldom visible.

Certificates of Authenticity accompany all Potosi Cob Coins.

Click on picture to enlarge

8 Reales

Item#: 15057
Denomination: 8 reales
Mint: Potosi
Assayer: A
Weight: 27.4 grams
Diameter: 1.5 inches

Price: $795.00 SOLD

Shield type cob, Potosi mint, Philip II, assayer A, circa 1586-1589 (before dates were applied - the first appearing in 1617), graded fine / very fine for condition, nice full weight. Lightly struck full cross with all lions and castles visible in the cross quadrants along with some peripheral legend . Excellent full shield with all elements visible along with the mint mark "P" and assayer mark "A" at left, denomination mark VIII at right and some legend along the edge. Coins of assayer A are not as common as most Potosi cobs and are significant in that they were struck during the time period of the famous defeat of the invincible Spanish Armada. Due to the time period and typical high quality, assayer A coins are very popular with collectors. Supplied with a New World Treasures photo type Certificate of Authenticity.

Click on picture to enlarge

8 Reales

Item#: 17056
Denomination: 8 reales
Mint: Potosi
Assayer: B
Weight: 27.1 grams
Diameter: 1.5 inches

Price: $895.00 SOLD

Shield type cob, Potosi mint, Philip II, assayer B (3rd period), circa 1581-1586 (prior to when coins received dates), graded extremely very fine for condition. Excellent, deep struck full cross with all lions and castles visible in the cross quadrants along with some peripheral legend. The cross side castles are of the "six window" style found on coins of the 3rd period of assayer B, the assayer that preceded assayer A. Equally beautiful shield side details including a full shield with all elements well struck, the mint and assayer marks P and B at left (the top of the B is lightly visible and confirmed by the cross side castle design), denomination mark VIII (8 reales) at right and some peripheral legend including a nearly full King's name PHILIPVS along the right side edge. A excellent, well detailed, attractive coin of Philip II. Supplied with a New World Treasures photo type Certificate of Authenticity.

Click on picture to enlarge

8 Reales

Item#: 18050
Denomination: 8 reales
Mint: Potosi
Assayer: T
Weight: 27.1 grams
Diameter: 1.4-1.5 inches

Price: $895.00 SOLD

Shield type cob, Potosi mint, Philip III, assayer T, dated 162x (1620 per the cross side lion design), exactly like the 1620 coins salvaged from the Atocha, graded very fine for condition, possibly sea salvaged. Excellent, nicely centered full cross with all lions and castles well detailed (quadrants transposed) and with digits 62 of the date 1620 visible between the 10 and 11 o'clock position along the edge (the 1620 date confirmed by the lion design found in the cross quadrants). Equally nice, deep struck full shield with portions of the mint mark "P" and assayer mark "T" visible at left (the top of the P and left side of the T is missing but positive). This coin is well struck for the time period and would make a great addition to any Potosí cob collection. Supplied with a New World Treasures photo type Certificate of Authenticity.

Click on picture to enlarge

8 Reales

Item#: 7005
Denomination: 8 reales
Mint: Potosi
Assayer: E
Weight: 26.4 grams
Diameter: 1.6 inches

Price: $495.00 SOLD

Pillars and waves type cob, Philip IV, assayer E, dated 1663, grade very fine, nicely toned. Excellent deep struck full cross with all lions and castles finely detailed in the cross quadrants, the center off the cross showing light gouging or scrape marks of unknown origin. Also visible on the cross side is the mint mark P at left, partial assayer mark E at right and 663 of the date 1663 below. Equally nice pillars side details including the denomination mark 8 at top center, both mint marks P at top left and bottom right, one assayer mark E at bottom left, most of the central PLV SVL TRA, bold 63 of the central date 1663 at bottom center above the waves and bold 66 of the legend date located at the 7-8 o'clock position along the edge. Uncommon in that all three mint marks and dates are partially of fully visible. Struck on a very large planchet that's thick in the middle and tapers towards the edge; preventing the dies from making contact, causing edge flatness. Supplied with a New World Treasures photo type Certificate of Authenticity.

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