Susan B. Anthony Dollar
A right-facing portrait of suffragist Susan B. Anthony inside an eleven-sided inner border. The Apollo 11 eagle landing on the Moon, carried over from the Eisenhower dollar.
Composition
Key dates to look for
1981-P SBA Dollar
$5 – $15Sold only in Mint sets — no 1981 SBAs entered circulation
1981-D SBA Dollar
$5 – $15Mint sets only
1981-S SBA Dollar
$5 – $15Mint sets and proof sets only
1999-P SBA Dollar
$20+ for the proofSurprise revival year; the proof version was sold separately and is popular
Valuable varieties & errors
1979-P Wide Rim / Near Date
scarcePartway through 1979, Philadelphia widened the coin's rim to improve stacking, which pushed the date visibly closer to the edge. The Wide Rim (Near Date) version is much scarcer than the common Narrow Rim.
1979-S Proof Type 2 (Clear S)
scarceThe S mint mark punch used on early 1979 proofs was worn and blob-like. It was replaced mid-year with a crisp new punch, and proofs with the clear S are the scarcer Type 2.
1981-S Proof Type 2 (Clear S)
rareThe mint mark punch was replaced again late in 1981, giving some proofs a flat-topped, clearly defined S instead of the rounded early version. The Type 2 is the key proof variety of the series.
Error types found on this series

Off-Center Strike
The blank wasn't centered when struck, so part of the design is missing and part of the coin is blank.

Broadstrike
The coin was struck without its retaining collar, so it spread out wider and thinner than normal.

Clipped Planchet
A bite-shaped piece of the coin is missing because the blank was punched from an already-punched part of the metal strip.

Wrong Planchet
A coin struck on a blank intended for a different denomination or country — like a quarter design on a nickel blank.
Machine Doubling
The die bounced or chattered at the moment of striking, smearing a flat shelf-like second edge onto the design.
Real photos where available (credits); others are illustrations.