DUBLIN CROWN SHIP LETTER MARK; Pair of 1833 EL's (file folds, one defective) to Dublin ex Cork both headed 'Consignees....' with "d1" p.due mark and fancy "[CROWN]/SHIP LETTER/DUBLIN" d.s. on front of each and Dublin 'diamond' d.s. on rear, Sep./Dec.1834 EL's (file folds; one with a separate summary of goods shipped) to Dublin ex Liverpool or Belfast both headed 'Consignees....' with "d1" p.due mark and fancy "[CROWN]/SHIP LETTER/DUBLIN" d.s. on front of each and Dublin 'diamond' d.s. on rear. (4 covers) Cross Reference: IRELAND PRE-1922 - POSTAL HISTORY, SHIP LETTERS (Image)