Bulletin /
Civil Censorship Study Group,issuing body.
Association of British Philatelic Societies.
Volume 34, no. 4 (October 2007) = [whole] number 156.
Issuing body described as: Civilian Censorship Study Group, on cover of Volume 1, no. 1 (November 1973) and volume 1, no. 3 (April 1974).
Latest issue consulted: Volume 46, no. 3 (number 203) (July 2019).
Postal service