The Great Britain Philatelic Society has been given permission to update and reprint the Richard Arundel series of books on duplex postmarks. This is the second in the series, updated by Russell Taylor. In 1992 Richard Arundel (RA) published a comprehensive book on the English and Welsh Spoon cancels which were the product of an experiment from 1853 onwards in Great Britain intended to speed up the stamping process of letters by the use of double stamps; one unit incorporating both a dater and an obliterator. The book included Proof Book Dates, Earliest/Latest Known Dates (EKD/LKDs), Time Codes and a Valuation Guide. Over the next few years it was reprinted twice and updated with supplementary data.Russell has used Arundel's information as a base and then added to it based on images and information from various known sources.