We have the following free downloads and links:
British Consulate Post Office at Bangkok 1855 to 1885 by Michel J. R. Houde
A number of corrections, updates and additions are available at: https://michelhoude.com/Book-Update/Index.html

The website provides details on corrections, updates, and other significant information that has emerged since the book was released. Notably, it features outbound covers that were not included in the book, as well as an entirely new section focused on inbound covers.
[Please note: The link provided is to a website managed by the author, not the Stuart Rossiter Trust. Please address any queries to Michel.]
Great Britain: Failed Free Handstamps of the Franking System by Robert B Galland and John E Colton
Supplement 2, February 2023
This is the second (cumulative) supplement. When published in 2014 more than 250 wrappers, entires or fronts with Failed Free handstamps were described in detail. Since then, more than 70 new examples have been identified, 10 of which are in the Fletcher Collection in the British Library.
Further details have been obtained of 11 examples originally listed, including two Above Number handstamps (LN 3 and LN 8) which though described elsewhere in red ink had not been seen. No new type of handstamp has been found. There are two corrections: an LP 8 stamp incorrectly described as being in black ink rather than red and a date incorrectly recorded as 1743 instead of 1744 on a DCh 1 stamp.
To put the Supplement into context it needs to be read with the original book.
DownloadThe Postmarks and Postal History of Cameroun under French Administration 1916-1959
By Marty Bratzel

Primary source documentation and background material is included on the CD accompanying the book, see our Sponsored Books page. The supplementary information is also available as a free download; please email us at srtcorr@gmail.com
Please note that whilst these downloads are available freely for personal use, the content remains the property of the author and is protected under the Copyright, Designs and Patents Act 1988.

