The coin in question is a significant piece in the category of So-Called Dollars, specifically from the Hibler & Kappen series related to the United States of America from the year 1881. This particular coin stands out due to its unique characteristics, although some critical physical properties—such as its diameter and weight—are listed as ‘0.00000000’, which may suggest that the coin is either unmeasured, unassigned, or potentially a conceptual piece rather than a physically minted one. Designating itself as a proof coin, it indicates a high-quality finish typically produced for collectors rather than for circulation. The denomination is categorized as "Other / Varied," suggesting that it may not conform to standard currency measures or could represent a special commemorative issue. Importantly, the mint of origin remains marked as unknown, which may add an element of intrigue to collectors seeking to establish provenance or specific details about its production. Additionally, the recorded mintage of ‘0’ raises questions about the existence or the status of this particular coin, implying that it may be exceedingly rare, potentially existing only in concept or as a prototype rather than a mass-produced item. Overall, this coin represents a fascinating enigma within the realm of coin collecting, bridging the worlds of historical significance and collector curiosity, especially within the context of 19th-century American numismatics.
| Country | United States of America |
| Year | 1881 |
| Serie | So-Called Dollars - Hibler & Kappen |
| Denomination | Other / Varied |
| Mint | Unknown |