The 1962 report on the NELIAC programming language seems to be the only place on the Internet that ever called `#` "_Hexi sign_".
NELIAC might also be the original "braces programming language" since it used them to delimit blocks in 1958, nine years before BCPL.
Oh, needing some #retrocomputing tags on your posts, Trammell!@th
(void*)
Oh, needing some #retrocomputing tags on your posts, Trammell!
@th