This is a unique test print for the 5 mBTC note, printed entirely in violet ink. The print also includes an invisible UV feature in RED – only one of two test prints of the entire production that do so.

Test prints are made before a run begins, to make sure the inks are the correct consistency, the plate is inked correctly, and many other factors that influence the quality of the final run. Numerous test prints have to be made, but most a destroyed. Only a handful of test prints remain from this series, all of which are unique.

For more information on the Avatars series, visit bitcoin-banknote.com/avatars