Super rare 1976 Sanrio Hello kitty Pink electric guitar with internal amp,speaker n outputs

Very rare 1976 hello kitty electric guitar ,kids size.i filed the nut and adjusted the saddles to get some good action on it. Very cool little guitar.the paint on the back is wavy( see photo) barely noticeable if you have to hold it in the light a certain way.it has new strings. And the saddles are from a fender squier.
neck scale is about 19.5 to 19 3/4 depending on saddles,I might set the intonation,but it sounded fine when i played it ,but i didnt check it with a tuner.