1878 10S GREY-GREEN (SG128) STUNNING UPPER LEFT CORNER IMPERFORATE PAIR COLOUR TRIAL OVERPRINTED 'SPECIMEN' TYPE 9 WITH '559' CURRENT NUMBER AND 'CROWN/POSTAGE/--- 10s 0d' REGISTRATION MARK IN RED. A quite superb imperforate upper left corner marginal pair 1878 10s grey-green (SG128) colour trial lettered AA AB overprinted 'SPECIMEN' type 9 and in sheet margin '559' current number in grey-green and 'CROWN/POSTAGE/--- 10s 0d' registration mark in red. A wonderful exhibition item. (Ref 138259).
%20STUNNING%20UPPER%20LEFT%20CORNER%20IMPERFORATE%20PAIR%20COLOUR%20TRIAL%20OVERPRINTED%20'SPECIMEN'%20TYPE%209%20WITH%20'559'%20CURRENT%20NUMBER%20AND%20'CROWN/POSTAGE/---%2010s%200d'%20REGISTRATION%20MARK%20IN%20RED.){kind=link}