At a Glance
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Issuing Body: United States Mint (San Francisco Mint — “S” mintmark)
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Mintage Detail: Each Innovation coin proof struck at San Francisco had a limited mintage of 137,696 — making the set proudly exclusive.
Set Contents & Designs
This set showcases four distinct state-themed innovation coins, each celebrating a pivotal moment in U.S. ingenuity:
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Delaware: Honors astronomer Annie Jump Cannon and her stellar classification system — note the starry motif framing her silhouette.
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Pennsylvania: Commemorates the groundbreaking development of the polio vaccine.
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New Jersey: Salutes Thomas Edison’s light bulb invention — a luminous tribute to innovation.
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Georgia: Highlights the Trustees’ Garden in Savannah — a symbol of early colonial science and cultivation.
Why Collectors Love It
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Proof-Quality Minting: Expect deep mirror fields and crisp frosted devices—the hallmark of U.S. Mint proof strikes.
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Series Significance: It’s the inaugural annual issue in the American Innovation series (2019 marked the first full set).
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Intellectual Depth: Each coin conveys a unique story of innovation, making this set more than just currency—it’s a slice of U.S. heritage.
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Presentation: Came packaged in official U.S. Mint boxes, complete with Certificate of Authenticity—priceless for collectors and gift-givers alike.