Illustrated listing of Cardiff Columbia, Krag and Universal machine marks with 100 images of Slogan, Printed Matter,
Paid and Official marks as well as normal operational daters and obliterators.
A5 48 pages in full colour.
Published by the author 2016 ISBN 0 9553627 0 9
PRICE £10 + £1 P&P
Published with the support of Cardiff Philatelic Society and Welsh Philatelic Society.