EXCEPTIONALLY RARE BELFAST IRISH/BRITISH POSTAGE SPLIT MARK; 8 Jan. 1806 EL (minor faults) to Lisbon with mostly v.fine strike of the Belfast "POST PAID/Irish '6'(d)/British '5:8'(d)" and totalled as '6:2'(d) below. Exceeding rare mark - the finer of perhaps only two examples (other to Edinburgh) believed to exist. "BELFAST" s/l h.s. and d.s. also on front and London transit d.s. on rear. Significant Irish exhibition item Cross Reference: OVERSEAS DESTINATIONS, ACCOUNTANCY MARKS, IRELAND PRE-1922 - POSTAL HISTORY (Image)