50th Auction Anniversary Auction - Day 8

Portugal: 1870, 240 R lilac 'Luis I.', tied by both barred numeral "1" in black and boxed 'P.D.' in
1870, 240 R lilac 'Luis I.', tied by both barred numeral "1" in black and boxed 'P.D.' in red, single franking on cover from Lisboa, 6/1 1873, to Vienna in Austria, transit 'Avricourt-Strassburg i.E.' (t.p.o.) and arrival mark Wien (12.1.73) on reverse, cover somewhat cleaned in overall attractive and F/VF condition. VERY RARE! Certificate Morgoulis