GazRox
Wow! What a find! Now I have, in addition to photographs by Gerry van der Meer, videos by Andreas Makarewitsch and photos from my visit to Osborn House, the amazing GazRox collection; without a doubt the best gallery of exhibits from the now-lost-to-time "Geelong Cement Retirees' Museum".
See: https://www.fyansford.com/cementies-museum