weird little jcpenny and i need a power cord

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Found this one today. I like it.

IT takes some weird plug that i havent found. no idea what that is all about.

Anyone ever seen one before?

It appears it is a 4 prong keyed plug...but there is another 3 pronged smaller type plug above it. Not sure which is for what exactly. It is dated 1981. I can see what looks like a bit of glue residue for a square sticker that appears like it was right near the power plug.....and another small spot up near the 3 pronged plug. They are both missing. I couldnt find anything online using the jcpenny model number shown.