Made in a different style than Casascius’ other coins, this 25 BTC piece is iconic. It’s black lacquered text stands out and is easy to read, and the raised ‘B’ exudes confidence. It has been frequently displayed in the media in articles relating to Bitcoin, most notably during the extensive coverage of the November 2013 price surge.
On the reverse, the 0’s and 1’s spell out “You asked for change, we gave you coins” in binary, a reference to the ‘change’ Bitcoin might bring to the world economy and Caldwell’s role in advancing it by his production of coins. Many coin producers have drawn inspiration and utilized a similar ‘binary edge’ design on their coins.
As far as public perception goes, this may be the most easily recognizable ‘bitcoin’ along with the series 2 1 BTC 2013 and series 3 1 BTC 2013 ‘Gold Rim’. 2012 and 2013 funded versions are extremely rare.