Idaho Municipal Energy Audit turns up something old - really old

Doing a municipal energy audit on a museum in Idaho this week turned out to be more fun than work. Each room kept turning up things that used as a child. This is the first computer/calculator that I can remember seeing. My granddad used his every day, and his even printed in red! Not too many kids these days would even know what this "gadget" was much less how to even use it.