2011 Casascius 1 BTC Brass Coin - Series 1


These were the first Casascius coins ever produced by Mike Caswell. They are known as the Error coin, because the word Casacius was misspelled. There was a sub variant of five coins, known as Double Error coins that had the public key placed higher up on the hologram. These quantities were minted in the following years: 2011 (4,160), 2012 (1,578) and 2013 (371) They are highly sought after and rare collector coins.
Supplier Casascius
Release Date 06/09/2011
Country of Origin United States
Item Type Coin
Denomination 1.000 BTC (Bitcoin)
Mintage Quantity 6114
Base Material Brass
Diameter 28.50mm
Depth 1.50mm
Weight 6.80g
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