The author's work fell out of favour in Britain in the 1940s until Goulden reprinted them in paperback in the late 1950s with some success. However it was the resurgence in the 1960s when the book begain to take off with the publication of the 'Tarzan' and 'Mars' titles by Four Square. Tandem published many other title in the 1970s.
See a full list on the companion site; https://sites.google.com/view/edgarriceburroughsukpaperbacks/home?fbclid=IwAR3dmPp6LNObo-Y--bBRJrw_rPSWIFxqnEiu9pXbh9TC28LD7u6Pf8tNcVo
Early British edition with dust jackets are hard to find and command a price of several Hundreds of pound. It is attempted here to list all the British 1st editions, showing boards and were possible dust jackets.
==================================================================================