I have an answer to a teletype question on Vintage Computer Federation Forum but don't really need to join up.
Can a member please answer this one for me?
https://forum.vcfed.org/index.php?threads/seeking-board-photograph-from-teletype-dataspeed-model-40-terminal.1254863/

Answer with this photo
https://www.navy-radio.com/tty/m40/m40-410657-01.JPG

thanks,
Nick England K4NYW
Chapel Hill NC
www.navy-radio.com