Lot no. 439

1875, 25 c. blue in vertical pair, tied by cds. "LUXEMBOURG 2 3 77" to registered sealed envelope with manuscript "chargée d'office", boxed "Recomandirt" and not quite complete label "Vom Ausland über Bahnpost 12 (Saarbrücken-Trier) eingeschrieben" to Vienna with arrival mark; the envelope somewhat reduced at left by opening and some age-wear, a great rarity of Luxemburg official stamps; this the only known registered entire with official stamps and the only known letter with official stamps to Austria, sign. Goebel