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Our experts will answer questions dealing with the subjects listed below:

Postage due, Foreign Mail 1840 to 1875:
Hans Bergdolt
E-Mail: hans.bergdolt@gmx.net
Zeppelinpost, Official Mail, Machine Cancels:
Axel Frauenrath, Kaldenkirchener Str. 42, 41063 Mönchengladbach
Phone +49 (0)175 2280465, E-Mail: axel.frauenrath@t-online.de
Post Offices, Postmarks, Overprints:
Hans-Jürgen Goebelbecker, Wiesenstr. 9a, D-76706 Dettenheim
Phone +49(0)170 387 1200, E-Mail: haju.goe@gmx.de
Revenues:
Jörg Hofmann, Lilienthalstr. 30, 42719 Solingen
Phone +49 (0)212-314525, E-Mail: australien81@yahoo.de

Military and Censor Mail, Irish Movement for Independence appr. 1910 to 1923:
Political and Propaganda Labels related to Ireland:
Heinz-Jürgen Kumpf, Schützengasse 6/3, A-1060 Wien
Tel. +49 (0)170 494 1088, E-Mail: hhjkumpf-fai@gmx.at

Postmarks from 1922:
Harald Lützenkirchen, Glehner Weg 35, 41464 Neuss
Phone +49 (0)2131 81518, E-Mail: logokrat@t-online.de

Postal Rates until 1922 (in particular rates to foreign countries):
Dr. Joachim Schaaf
E-Mail: joachim.schaaf@web.de

Update 06.11.2023