Description
This coin is made from an empty Casascius
5 BTC coin, with a ‘Nasty Mining’ hologram
added to the back. The public key is printed
onto the hologram, and the coin is shipped
unfunded. 20 were made and sold for 0.25
BTC each via the Bitcointalk.org forum. The
slab it comes with has a QR code pertaining
to the public key, allowing for easy funding
by the buyer.