Walter Kohlhaas, Inge Riese: Bickerdike - Briefstempelmaschinen
Poststempelgilde e.V.
Soest 1997
# Bickerdike / The Canadian Postal Supply Company # Maschinenstempel # Poststempelgilde # Helmut Kohl
Geoffrey R. Newman: The Bickerdike Machine Papers
The Unitrade Press/British North American Philatelic Society (BNAPS)
Toronto 1986
# Bickerdike / The Canadian Postal Supply Company # Frankfurt am Main
# Bickerdike / The Canadian Postal Supply Company # Post - und Telekommunikationsmuseen
# Italien # Bickerdike / The Canadian Postal Supply Company # Stempel
# Postgeschichte # Bickerdike / The Canadian Postal Supply Company # Maschinenstempel # Krag # Bayern # Daguin / Mix + Genest / Nachbauten # Hey + Dolphin / Flier / Flyer / International Postal Supply Company
# Italien # Postautomation # Bickerdike / The Canadian Postal Supply Company # Stempel # Maschinenstempel
# Italien # Postautomation # Bickerdike / The Canadian Postal Supply Company # Stempel # Maschinenstempel
# Bickerdike / The Canadian Postal Supply Company # Maschinenstempel
# Bickerdike / The Canadian Postal Supply Company # Amerika (Kontinent)
# Österreich # Bickerdike / The Canadian Postal Supply Company # Geschichte / Politik # Wien
# Österreich # Bickerdike / The Canadian Postal Supply Company # Geschichte / Politik # Post - und Telekommunikationsmuseen # Wien
# Österreich # Bickerdike / The Canadian Postal Supply Company # Geschichte / Politik # Wien
# Bickerdike / The Canadian Postal Supply Company # Klüssendorf
# Bickerdike / The Canadian Postal Supply Company # Maschinenstempel # Aachen
# Bickerdike / The Canadian Postal Supply Company # Maschinenstempel # Standard - Stempelmaschine / Universal - Stempelmaschine # Hey + Dolphin / Flier / Flyer / International Postal Supply Company
Frederick Langford: Flag Cancel Encyclopedia
Forth, Completely Revised, Edition
Pasadena 2008