Few American gold coins combine history, size and scarcity like the 1915-S Panama-Pacific $50 Gold Coin. Produced in both Round and Octagonal formats for the 1915 Panama-Pacific International Exposition in San Francisco, these massive gold coins were created to commemorate the opening of the Panama Canal and the rebuilding of San Francisco after the 1906 earthquake and fire.
The Numbers Are Remarkable
The San Francisco Mint struck approximately 1,500 examples of each design. But the $50 coins proved difficult to sell at their original $100 issue price, and thousands of dollars’ worth of gold ultimately returned to the Mint to be melted.
| Panama-Pacific $50 | Originally Struck | Net Distributed |
| Round | 1,500 | 483 |
| Octagonal | 1,500 | 645 |
| Combined | 3,000 | 1,128 |
That means only 1,128 Panama-Pacific $50 gold coins, Round and Octagonal combined, were actually distributed to collectors and buyers in 1915.
The Round $50 Is the Scarcer of the Two
The 1915-S Panama-Pacific Round $50 Gold Coin is particularly famous because only 483 examples were distributed, compared with 645 Octagonal pieces. PCGS describes the Round as having the lowest number of coins released of the entire U.S. commemorative gold series.
The Octagonal $50, while slightly more available, is still extraordinarily scarce with a net distribution of only 645 coins. Its distinctive eight-sided design incorporates dolphins around the border, symbolizing the continuous waterway created by the Panama Canal.
PCGS Population Reports Put the Scarcity in Perspective
Current PCGS population data lists 426 grading records for the Round and 581 for the Octagonal, for a combined 1,007 PCGS grading records.
At first glance, that number is striking when compared with the combined net distribution of just 1,128 coins.
But population reports should not be interpreted as a count of unique surviving coins. The same coin can be submitted multiple times, crossed between grading services or resubmitted in an attempt to receive a different grade. NGC has specifically cautioned that population figures for the Panama-Pacific $50 issues are affected by resubmissions.
That makes the original distribution figures particularly important when evaluating these coins.
483 Round. 645 Octagonal. Just 1,128 Panama-Pacific $50s distributed.
More than a century later, these enormous gold commemoratives remain among the most historically significant and desirable issues ever produced by the United States Mint.
Gold Pulls Back $100