The following note was found inside a recently acquired copy of Ready Ref Sheets, an old Judges Guild book that's probably one of the most useful things ever published for OD&D. I've used it for several other editions of D&D as well. Anyway, here's the note:
I love finding stuff like this in old game books. It just warms my heart to see evidence of unknown people having some fun God knows how long ago.
[MegaDelve] The Flooded Mines
23 minutes ago