CASIO Scientific Calculator
fx-15 & fx-31
made in Japan
not Tested
fx-31 the on-off switch is loose, I don't think it has contacts... , the other, fx-15 does not respond
old and RARITY
You will get the exactly same items so please check out the photographs - pictures
REGISTERED LETTER
in a protected AIRY bubbles ENVELOP
E - double protected from impact or injury