In addition to the slides from the Celebrity Photo Agency, I also have a lot of slides in 24x36mm format taken directly from the film set and similar, like this one. Most of the slides, also known as reversal film, have motif details on the edge.
Slide Edward Albert 1983 Slide 35mm T38-20-4-2
Slide Edward Albert 1983 Slide 35mm T38-21-2-2
Slide Edward Albert 1983 Slide 35mm T38-21-1-1
Slide Edward Albert & wife 1984 Slide 35mm T38-21-3-3
Glass Magic Lantern Slide AMERICA BY BELL THE ALBERT MEMORIAL C1890 PHOTO LONDON
Glass Magic lantern slide CORONATION PARADE OF KING EDWARD VII 1901 ROYALTY NO4