Casascius physical bitcoins was created by Mike Caldwell in 2011 until 2013. Mike Caldwell got the name Casascius from an acronym "Call a Spade a Spade". This physical bitcoin are produced in 1, 10, 25, 100, 1000 BTC and it was made in way that the first person to get the private key from the coin collect the bitcoin.
Casascius physical bitcoins
Question This are in limited copy and only few are still available.
I will like to know if there have been any one who has seen one and if there have ever been one in Nigeria?
