For your consideration, here is a Vintage Sharp ELSI Mate EL-104 Red LED Calculator, with case, made in Japan.  I have tested it and it works fine.  It has some  wear on it.  The display screen is very scratched.  The digits display through it okay.  The battery compartment is clean.  It takes a 9 volt battery, not included.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (168.63t-.10hc)