Struck in 90% silver at the Denver Mint, the World War II-era 1942-D Liberty Walking half dollars circulated throughout the central and Rocky Mountain regions of the country. The beauty and artistry of the design were well-appreciated by the public. When Liberty "Walkers" were no longer being minted, people continued to enjoy finding them in their pocket change. The full-length figure of Liberty was an elegant departure from the usual portrait, or "heads," motif.