EL SEGUNDO, Calif., Sept. 16, 2025 (GLOBE NEWSWIRE) -- A-Mark Precious Metals, Inc. (NASDAQ: AMRK) (A-Mark), a leading fully integrated precious metals platform, announced that its Stack’s Bowers Galleries subsidiary auctioned seven year 2000 Sacagawea 22 karat gold dollars owned by the United States Mint in a live auction held in their Costa Mesa, California, studios on September 12, 2025. The coins honor the pioneering spirit of American women. Sacagawea helped Lewis and Clark explore the Louisiana Territ ...