Photographic proof of treasury bond (?) of 1 pound sterling .
Size: 188 x 110 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.