Natal 1902 KEVII £5 Postage Revenue Die Proof AH 1 May 02

1902 KEVII DIE PROOF of £5 POSTAGE REVENUE (SG 144) frame plate in black on glazed card dated 1 MAY 02 (in blue) and marked AFTER HARDENING. VF, a particularly rare state of the die. Typically only a single such impression was taken for checking of the master die roller at each of the after hardening, before striking and after striking production stages.