1909

Philadelphia's 1909 double eagle production totaled 161,282 pieces, a figure that covers both the normal 1909-dated examples and the 1909 9 Over 8 overdate variety that emerged from the same die-preparation cycle. The overdate arose when a working die originally prepared for 1908 use was repunched with a 1909 logotype rather than discarded or refaced, leaving visible traces of the underlying 8 beneath the final 9. Most surviving 1909 double eagles show the clean 1909 date without overdate characteristics. Philadelphia's output fell between Denver's much smaller 52,500-piece run and San Francisco's 2,774,925 mass strike that same year. 1909 marked the second year of the With Motto type, with the obverse star count still at 46 ahead of the 1912 increase to 48 following New Mexico and Arizona statehood.

Collectors examining a 1909 should always check whether the specific coin is the regular date or the 1909/8 overdate, because the pricing differential is meaningful and the distinction is not always obvious on worn examples. The underlying 8 shows most clearly in higher grades where a loupe can pick up the remnants inside and below the final 9, while circulated pieces often require side-by-side comparison with a known overdate example. Strike quality on the normal 1909 is generally acceptable, with Philadelphia's presses producing clean central detail on Liberty and the eagle; weakly struck coins occur but are not a defining characteristic of the issue. Typical wear follows the series pattern: Liberty's forward knee, breast, and the eagle's breast and leading wing show friction first. Counterfeit concerns for 1909 Philadelphia are the same as for other medium-mintage Saint-Gaudens dates, and PCGS or NGC certification resolves both authenticity and the overdate-attribution question at once.

Market position for the normal 1909 Philadelphia sits as a better-date Saint-Gaudens issue rather than a key. Survival is estimated at a few thousand examples across all grades, enough that circulated and low Mint State coins trade regularly without difficulty, yet limited enough that MS65 and finer examples carry registry-set premiums. Gem-grade 1909 Philadelphia coins are genuinely scarce relative to the mintage figure, a condition-rarity pattern common across early-series Saint-Gaudens issues that circulated before the 1933 recall. Acquisition path for set builders is a certified PCGS or NGC piece at MS63 or MS64, which offers the cleanest balance of availability and price. Collectors specifically hunting the 1909/8 overdate generally pursue it separately and accept a meaningful premium over the normal issue. For the broader context of how overdates arose in this series and the production cycle that produced the 1909 dies, see the St. Gaudens Gold $20 Double Eagles history article.