cover 15pa. orange (perf. 9½) and 1872-73 second printing 10pa. greyish brown (perf. 12) horizontal pair, affixed to 1874 (24 April) entire to Vienna and tied by "BEOGRAD" c.d.s., unframed "PD" adjacent; horizontal fold well clear of adhesives. A most unusual combination for the 35pa. rate to Austria. Fresh. M.13IB, 12IIA. Photo