10 Dollars Eliza Johnson, Bullion Coinage

The First Spouse gold bullion series launched in 2007 to accompany the Presidential Dollar program, issuing a paired gold coin for each president's spouse. Eliza Johnson presented an unusual problem: she was chronically ill throughout Andrew Johnson's presidency and rarely appeared in public, leaving almost no public record of her White House presence. Where a spouse was absent or unmarried, the Mint substituted an obverse bearing Liberty — but Eliza Johnson was technically a First Lady, so she received her own portrait despite being one of the least documented women to hold the position.

Mintage for this issue was capped and ultimately came in well under 10,000 pieces across both proof and uncirculated formats.