DAS PHANTOM DER OPER images(!)
A reddit user found images (via the Internet Archive’s collection of German film journal Lichtbild-Bühne) from this 1916 grail of lost films – one from which no images (even promotional) were known to exist. As if I didn't want to see this film found enough…
My previous resurfacing of my initial write-up featuring early promotional texts and a description of the plot (note: add tag).