How to Identify the Alabama Centennial Half Dollar

Start with the obverse portraits and lettering. A genuine Alabama Centennial Half Dollar shows two overlapping profile busts — the two Alabama governors — together with wording naming the Alabama centennial and the anniversary dates. This governor-portrait obverse is the fastest way to separate it from the Walking Liberty and Barber half dollars circulating in the same period, which show a full Liberty figure or a Liberty head.

Next, check the field to the right of the busts for the variety. The 2×2 variety carries a small St. Andrew's cross with a "2" on each side, referencing Alabama as the 22nd state; the plain variety has an empty field there. Confirming which variety you have matters, because the 2×2 was made in smaller numbers and is worth a premium — inspect this spot under good light or magnification before concluding.

Verify the physical specifications. The coin is a standard half dollar: roughly 30.6 mm in diameter, about 12.5 grams, struck in 90% silver with a reeded edge. A calibrated scale and calipers are the best tools here; a piece that is off in weight, diameter, or edge reeding for a silver half dollar is a warning sign. The reverse should show the Alabama state eagle with a shield and banner, not a national circulating design.

Expect no mint mark. Every genuine example was struck at Philadelphia in 1921, so the absence of a mint mark is normal and not a concern. Any Alabama Centennial half dollar bearing a mint mark or a date other than 1921 should be treated as suspect.

Be cautious with authentication, since scarce commemoratives are targets for counterfeits and for added or altered 2×2 marks. Watch for tooling around the 2×2 device, mushy or doubled lettering, incorrect weight, or a color that does not match 90% silver. For any higher-value purchase — especially a 2×2 or a high-grade coin — rely on reputable dealers and third-party grading (PCGS, NGC) rather than eye appeal alone.