The design of the coin is creative, as a quarter ‘slice’ of the
coin surface is indicated with a different surface finish.
This suggests that one quarter of the coin is ‘filled in’
in regards to the denomination of 0.25 BTC. Simply
looking at the bottom half of the coin, the graphic and
‘B’ could well be read as ‘Quarter Bitcoin’. This same
theme is repeated on the back, where 25 percent of the
outer area of the coin is ‘filled’ with a ‘binary pattern’.