The 1991 Mount Rushmore Half Dollar

By 1941, after fourteen years of dynamite and drills, the four faces on Mount Rushmore were done — Washington, Jefferson, Lincoln, and Theodore Roosevelt, each head sixty feet tall, blasted out of a South Dakota granite cliff. The sculptor who started it, Gutzon Borglum, died that March; his son Lincoln finished the last details, and the work was declared complete on October 31, 1941.

Fifty years on, the granite was weathering and the visitor facilities were aging. Congress decided the half-century mark deserved both a celebration and a fundraiser. It passed the Mount Rushmore Commemorative Coin Act (Public Law 101-332), authorizing three coins struck in 1991: a five-dollar gold piece, a silver dollar, and this copper-nickel half dollar. The point was twofold — honor the memorial, and raise money to fix it.

That second goal is built right into the coin. Every one carried a surcharge — an extra dollar added to the price, on top of the metal and the minting. Half of that dollar went to reducing the national debt; the other half went to the Mount Rushmore National Memorial Society of the Black Hills, to help improve and enlarge the site. Buying the coin was, by design, a small donation to the mountain.

The obverse — the heads side — is the obvious one: Mount Rushmore itself, the four presidents under a sunburst, designed by Marcel Jovine. It is one of the rare coins where the subject is literally a portrait of a sculpture of portraits.

Turn it over and the surprise is waiting. The reverse, by Mint engraver T. James Ferrell, shows an American bison — the buffalo of the Great Plains — ringed by fifty stars for the fifty states. It is a deliberate echo of the old Buffalo nickel and a reminder that Rushmore sits in the heart of bison country, on land sacred to the Lakota long before any face was carved.

The half dollar is clad: a copper-nickel skin bonded over a pure copper core, the same recipe as everyday circulating halves. There is no precious metal in it. That was the plan — it was meant to be the affordable coin of the three-coin set, the one a family could buy.

This is one of the easier modern commemoratives to find — but not the way you might guess. The proof version, struck at San Francisco (the 1991-S, with a frosted-on-mirror finish for collectors), is the common one: 753,257 were made. The uncirculated version from Denver (the 1991-D, a normal business strike) is far scarcer at just 172,754 — barely a quarter as many. For the half dollar, the everyday-looking coin is the harder one to get.

Neither is rare in absolute terms, and most survive in high grade because almost none ever circulated — they went straight from the Mint into collector holdings, boxes, and capsules. Where the value lives now, beyond the metal and the original issue price, is at the very top of the grading scale: a coin certified in the highest mint-state or proof grades stands well above an ordinary one, because a 30-plus-year-old commemorative that is flawless is genuinely uncommon. The fields are large and mirror-like; the smallest contact mark shows.

The half dollar is also the gateway to the bigger chase: collectors who want the complete 1991 Mount Rushmore set need all three coins — this half dollar, the silver dollar, and the five-dollar gold piece, ideally in matching finishes.