TBA-0425 · Archive record
Bitcoin Penny
Double-tail proof · 2018
The 2018 Double-tail proof issue appears in Bitcoin Penny’s official collector guide.
Documented details
- Maker / brand
- Bitcoin Penny
- Producer
- Bitcoin Penny
- Object type
- Coin
- Mint / inscription year
- 2018
- Release year
- 2018
- Edition / mintage
- 4
- Approximate maker-reported production
- The maker explicitly describes the collector-guide quantities as approximate.
Not established or not applicable
Issuing country, Issuer, Seller, Offer year, Material, Purity / composition, Denomination, Weight, Diameter / dimensions, Thickness, Finish / variant, Original funding arrangement.
Identification notes
Release year is recorded separately from a confirmed date on the object. Individual funding and condition require specimen-level verification.
No photograph is published for this entry; reference images remain with the source.
Sources
Record reviewed: 2026-10-13.
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