> Six hours to send a small image. Imagine the price of exclusive use of a transatlantic telex line for that length of time! Teleprinters back then commonly r

> Six hours to send a small image. Imagine the price of exclusive use of a transatlantic telex line for that length of time! Teleprinters back then commonly ran at 50 baud, so a 400x300 dot photo would take a little more than 40 minutes (120000 dots / 50 baud / 60 seconds) The linked article mentions that the punched tape could be cut into several pieces then transmitted in parallel over several telex lines at once. At the receiving end the punched tapes would be spliced back together in correct order, and then used to create the photographic negative. That's an interesting piece of historic technology. Thanks.