I found another box of slides from my mother with dates from the 1950's thru the 1980s. I don't remember ever seeing most of them so it was a treasure trove of family images, interspersed with purchased slides from vacation trips. (Light box on the bottom, black foam core with a hole cut out to let light thru, big roll of black tape with the core centered over the hole, another piece of black foam core with a film-sized hole cut out so that the slide just lays on top. Camera is mounted on a copy stand.)
A great setup. We had lots of slide of our childhood holidays but sadly they have gone. I think my brother was a little ruthless when mum went into care.