TBA-0148 · Archive record
Denarium
1 BTC Bi-metallic coin prototype
A prototype combining a patinated bronze coin, steel ring and glass barrier over the hologram. Denarium described the E13226 specimen as unique in February 2019. The assembly diameter is approximately 50 mm; the manufacturing year remains unconfirmed.
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Documented details
- Maker / brand
- Denarium
- Issuer
- Denarium (private issuer)
- Object type
- Prototype / mock-up
- Release year
- 2019
- Offer year
- 2019
- Material
- Patinated bronze with steel ring
- Denomination
- 1 BTC
- Diameter / dimensions
- Approximately 50 mm (assembled prototype)
- Edition / mintage
- 1
- Maker-reported unique prototype
- Uniqueness claim is attributed to the maker’s auction description, not an independent surviving-population census.
- Finish / variant
- F0127 · 1 BTC Bi-metallic coin prototype
- Original funding arrangement
- Wallet collectible
Not established or not applicable
Issuing country, Producer, Seller, Mint / inscription year, Purity / composition, Weight, Thickness.
Identification notes
Maker model code F0127. No empty counterpart is listed in the checked SKU file. Prototype or mock-up, not presented as a regular public release. Release year and mint date are separate facts. Current balance is not verified. Similar model codes remain separate pending a maker-supported identity comparison.
Sources
- Denarium · official model and release-year table ↗
- Denarium · SKU definitions ↗
- Denarium · original prototype auction description ↗
Record reviewed: 2026-10-12.
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