I think you might want to call it a candle powered lantern slide projector. That should get a fair bit more historical people interested.
Glass negatives processed directly via reversal, or more often as contact copies of original negatives were the first sort of travelogue imaging shows to become available.
They were the first way you may hope to glimpse a place you may never visit.
Print images came a fair bit later than text in newspapers and magazines, and this thing likely predates widespread print imaging.