R.G. Traill, G.C. Holland: The Sideways Duplex Cancellations of England and Wales
Cheltenham 1975
James Arnot: The "Brunswick Star" with notes on the "Pillar Stamp" Duplex Obliterator
Edinburg 1950
James Douglas: The Experimental Duplex Cancellations of Scotland
Edinburgh ohne Jahr
# Großbritannien # Stempel # Duplex Stempel # Scotland / Schottland
# Frankreich # Daguin / Mix + Genest / Nachbauten # Pearson Hill # Paris # Duplex Stempel
Requiescem in Duplex
(parke sanft)