1980 Mi.1594, Year monkey 8F on envelope with special advertising red (exhibition) cancel.; very fine, rare, exceedingly interesting! 1980 Mi.1594, Year monkey 8F, 4-BLOK; superb multiple, as always with minimálními hints machine offset on reverse, perfectly preserved red color, c.v.. ca. 11.000€++, quite extraordinary offer, interesting also as investment! 1922 SG.127, Sultan Sir Ibrahim $100 green / red; extremely fine mint hinged example, with large part original gum, expertized Holcombe, c.v.. £2.250, scarce 1926 SG.128s, Sultan Sir Ibrahim $500 blue / red with overprint SPECIMEN; XF, c.v.. £1.400, rare stamp!