I know this is sacrilege in an HP/RPN thread, but with the passing of 40+ years I'm willing to at least give TI some recognition
Picked up this TI-59 Programmable with printer at the estate of a Dow Chemical engineer several years ago. Red LED display of course! Plugged it in and it not only worked perfectly, but the printer still prints. Came with around 75 slide-in program cards the guy had written himself for various operations at Dow.
