40 years ago today, first corned beef sandwich in orbit

Forty years ago today, March 23, 1965, Gus Grissom and John Young were
launched into orbit aboard the Molly Brown (Gemini 3). Gus performed
the first orbital maneuvers with a manned spacecraft and John offered
Gus a corned beef sandwich. I remember reading somewhere that the
sandwich (with a bite out of it) was preserved in plexiglas.

Rusty