Postal History
Undeliverable Mail and the Returned Letter Offices During the 18th and 19th Centuries
Robert Galland
64 sheets (double width)
Robert Galland
64 sheets (double width)

Inauguration of the Airmail Express Service between London and Paris 1919‑20
René Paschke-Güstrow
16 sheets
René Paschke-Güstrow
16 sheets
