10c 'Royal Mail Steam Packet Company' LOCAL issue 'De La Rue' DIE PROOF on thick glazed white card dated 'Feb. 18 1875 and endorsed with a 'BEFORE HARDENING' handstamp in black at top. A fine & rare exhibition piece. Ex Gregory Franz - Corinphila 2021 with photocopy of page of the catalogue for reference. (As Hurt & Williams #1)