Many thanks to SWLing Post contributor, Dan Greenall, who writes:
Hi Thomas
In addition to digitizing many of my old SW and BCB audio files, I have begun setting up some of my QSL galleries on the internet archive in order to help preserve radio history. I am sending along a few links that perhaps old timers and newcomers alike might find of interest.
SWBC stations (sorry, only scanned one side so far)
https://archive.org/details/radio-tampa-tokyo-japan-1987
Utility stations
https://archive.org/details/zhh-st.-helena-inside-view
Time signal stations
https://archive.org/details/vng-australia-1971
BCB stations (mostly my own except for a few very old historic ones that I bought from eBay)
https://archive.org/details/ckoc-hamilton-on-1983