I seem to have stumbled upon a GNU Emacs 13.8.
I'll post this
src/display.c snippet as evidence:
[...skull-and-crossbones with text warning...]
That looks identical to the comment at the head of display.c from the
Gosling derivative I use. Presumably one is derived from the other...?
/~\ The ASCII Mouse
\ / Ribbon Campaign
X Against HTML mouse at
rodents-montreal.org
/ \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B