Details
QU2 Master die proof, with blank value tablet, in black on glazed card (92 x 60mm.), marked "AFTER HARDENING", dated "Mar. 19, 1874" and intialled. Extremely rare. Photo
Provenance
Dale-Liechtenstein, 1990
Further details
Note: Whilst a handful of proofs marked "BEFORE HARDENING" are known, the above example is believed to be the only proof marked "AFTER HARDENING".