With all of the hype about wireless email being invented in the early 90s I guess no one considered the work being done by hams with surplus Teletype Machines.

Here's a photo of yours truly circa 1966 sending wireless messages using an old converted Teletype Corporation Model 15. In the background is the Terminal Unit (lower with 2 meter) and the state of the art transceiver of the era - an all tube crystal controlled GE Progress Line.

You can see the perforated tape in the foreground at the side of the TTY machine that was used to send the "brag tape" explaining all of the repetitive info such as the name, QTH, rig and equipment etc. The protocol in those days was 5 level BADOT with 850 hz FSK shift