This is the original Bell Aircraft photo
of the first flight of the Rocket Seat.
Hand-written on the back is,
“First Free Flight of Rocket Seat June 30, 1965”
and it's signed by rocket belt designer Wendell Moore
and its flyer, Robert Courter.
Is it just me, or does that look to you like
a cafeteria chair bolted to a furniture dolly?
Here's what their idea became: