Multifunction Calculators SHARP EL-351M CASIO SL-930ET NS-10LT Lot of 3 - Brand: SHARP - Model: EL-351M - Brand: CASIO - Model: SL-930ET - Brand: CASIO - Model: NS-10LT These were used for office work, so they show some wear and tear, but there are no operational issues. Only the CASIO mini-calculator did not have the tax rate change. It is unknown whether this is due to incorrect operation or a malfunction. There are traces of erased marker on the back of the SHARP calculator. It's faintly visible. There are also traces of removed tape.