Beschreibung
Postal History Journal, Nr. 95 und 96, June and October 1993, darin Hahn, Calvet M. : Postal Services in Pre- Mahdi Sudan, Part I + II, 25 S., mit Abb.; Ausserdem noch entahlten : Harris, Leo J. : Some Prestamp Postal Rates in the Area now Constituting the Republic of Ecuador, with Particular Reference to Pliegos, 18 S., mit Abb. #50368