Photographic proof (only back) of issued 2 leva 1921 (Pick 31a).
Size of proofs: 100 x 60 mm.
In 2014, the english auction house SPINK sold photographic archives of nowadays nonexistent printing works BRADBURY WILKINSON & CO. These archives included photographic copies of projects of notes, which were to be printed, but the project resulted in failure and, as a result, these notes never went into circulation.