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| 背面描述 | A right-facing portrait bust of Austrian inventor Josef Madersperger occupies the left portion of the field, rendered in fine relief with period-appropriate attire. The iconic Gothic spires and facade of St. Stephen's Cathedral (Stephansdom) in Vienna are depicted in the background to the right, providing a detailed architectural vignette. The subject's name 'JOSEF MADERSPERGER' is inscribed in raised Latin lettering along the upper field, while the denomination '20 DOLLARS' appears in the lower field. The composition balances the portrait effigy with the architectural motif in a classical commemorative style. |
| 背面文字 | Latin |
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| 边缘 | 登录 以查看详情 |
| 铸币厂 | 登录 以查看详情 |
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| 附加信息 |
Josef Madersperger, the Austrian tailor who patented an early sewing machine mechanism in Vienna in 1814, died in poverty in 1850 — entirely unrewarded while others commercialized the technology he pioneered. Liberia issued numerous silver commemoratives in the early 2000s under licensing arrangements with European distributors, producing themed series on inventors, scientists, and historical figures with no organic connection to the issuing nation.