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Expert Presentation: Auxiliary Postmarks of Magyar Posta
This expert presentation was made by Mariann Csatlos on November 15, 2025. Download a PDF copy of the presentation HERE.[...]
Expert Presentation: 1871 Lithos & Engraved: How to Differentiate the Two Printings (Csaba Kohalmi)
Watch the expert presentation by Csaba Kohalmi, made on on 10/30/2021: Download the PowerPoint CLICK HERE to download the PowerPoint[...]