Arrival Time Markings
History of the Prussian Post from its origins to the present. Published 1859.
Letter and Parcel services to Poland.
Photos from the Postal Museum "Muzeum Poczty i Telekomunikacji"
Poland Postmen etc.
Postmen C. 1920
St Martin's Le Grand Volume 8, An Official New Year's Card from Warsaw
The F Postmark in Prussia, The North German Confederation and in Germany