BELGIUM – Linden, James Van der: The Postal Relations between Austria and the United States 19th Century (2016), 32 pages, illustrated in colour, softcover, with a dedication/signature and a letter from the author; PLUS: Linden, James Van der: The Maritime Mail of Austria 1837–1875 (2022), 24 pages, softcover, with a dedication/signature from the author; PLUS: Linden, James Van der: Transatlantische Postverbindingen U.S.A. – Belgie (1984), 44 Seiten, softcover; PLUS: Amplatz. Michael: Postgeschichte Eupen, Malmedy & St. Vith. Band I: Die Post in den ehemals preußischen Eifelkreisen Eupen & Malmedy von den Anfängen bis 1920, 165 Seiten, softcover; PLUS: Panhuyzen, Emile J. Van den: La Poste à Bruxelles depuis ses débuts à 1850, 182 pages, in colour, hardcover with dust jacket, good condition. Estimate: 80 Euro