Coin
1 Dollar American Innovation - Wisconsin (2026) — United States
United States • 2026 • N#553958
Overview
A Reverse Proof United States 1 Dollar coin honoring innovation in Wisconsin as part of the American Innovation Coin Program. Minted in 2026 at San Francisco. The obverse features the Statue of Liberty in profile, while the reverse depicts a stylized aerial view of the Cray-1 supercomputer. Composed of Manganese brass clad copper with a lettered edge.
Specifications
- Country
- United States
- Year
- 2026
- Composition
- Manganese brass clad copper
- Weight
- 8.1 g
- Diameter
- 26.49 mm
- Thickness
- 2 mm
- Mint
- United States Mint of San Francisco
- Mintmark
- S
- Shape
- Round
- Technique
- Milled
- References
- N#553958
- Issuer
- United States
Design details
Obverse
The Statue of Liberty in profile. The design includes a privy mark of a stylized gear, representing industry and innovation. In 2026, the privy mark incorporated a Liberty Bell with the inscription “250” to commemorate the semiquincentennial of our Nation’s founding.
Reverse
A stylized aerial view of the Cray-1 supercomputer. The image emphasizes the Cray-1 not only through its shape, but also by suggesting the shape of a “C” for Cray-1 and “computer.”
Collector insights
- Design heritage: Phebe Hemphill, Justin Kunz, John McGraw, Paul Ramano is credited as the designer for the Non-circulating coins series. Designer attribution helps distinguish this issue from later restrikes or unofficial copies that reuse only the motif.
- Struck at: United States Mint of San Francisco (mintmark
S). Confirm the mintmark on your example before comparing prices — same-year issues from different mints often trade at very different levels. - Catalogue reference: Listed as
N#553958. Use this reference code when cross-checking auction archives, dealer inventories, and standard printed catalogues.
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