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- Product ID: 56475
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Denomination: $1 Mint: San Francisco (S Mint Mark) Composition: Copper with manganese brass cladding Diameter: 26.5 mm Thickness: 2.00 mm Weight: 8.1 grams Edge: Plain Grade: PF 70 Ultra Cameo (NGC) Designation: First Day of Issue Special Feature: Honors Mary Golda Ross, a Native American aerospace engineer and mathematician
Obverse (Front) Design: Features Sacagawea carrying her infant son, Jean Baptiste Charbonneau. Designed by Glenna Goodacre. Inscriptions: "LIBERTY" "IN GOD WE TRUST" Year: 2019 Reverse (Back) Design: Honors Mary Golda Ross (1908–2008), the first Native American female engineer. Depicts Ross writing equations, symbolizing her contributions to space exploration. Includes a formula representing spacecraft velocity, V²∞ = V² - 2μ/r, which relates to her aerospace work. Background features an astronaut and Earth, symbolizing her influence on NASA programs. Inscriptions: "UNITED STATES OF AMERICA" "$1" "E PLURIBUS UNUM"
Why This Coin is Special: This 2019-S Sacagawea Dollar is part of the Native American $1 Coin Program, highlighting Indigenous contributions to U.S. history. Mary Golda Ross was a Cherokee Nation member and played a key role in classified aerospace projects, including NASA’s Apollo program. Proof 70 Ultra Cameo (PF 70 UCAM) indicates a flawless coin with deep mirror-like surfaces and frosted design details. First Day of Issue (FDI) means it was graded on the first day the U.S. Mint released the coin, making it more collectible.