After posting about Barrowmaze II last Saturday, out of curiosity I went to check the first part of the megadungeon. I ended on artist Stefan Poag's blog where I found a piece of D&D art including the heraldry of the House of Gygax. From the cover of the original Barrowmaze:
I instantly remembered seeing it on the cover of the AD&D Dungeon Masters Guide, but where else?
After searching the web I came across a couple of very interesting posts on the subject by Jeff Rients: The Real Ring of Gaxx? and Gygax arms sighting. Do you know any other place you may find Gygax coat of arms?