



Back issues of Forerunners, the journal of the Philatelic Society for Greater Southern Africa (PSGSA), from issue #1 until about two years prior to the current issue, are available as a free download for members and non-members alike https://www.psgsa.org/journal/forerunner ...
What makes this even more helpful is the recent addition of a comprehensive, easily searchable index of authors and topics, which may also be downloaded from the webpage linked above.
The site also includes a number of free publications including the newly released Fourth (2025) edition of David Mordant's "The Barred Oval Numeral Cancellers of the Cape of Good Hope from 1863 – 1963"
https://www.psgsa.org/publications
The PSGSA focuses on philatelic areas related to past and present Southern Africa stamp-issuing entities.
Clive