Sharp HO EL-330TB 8 Digit Solar and Battery Powered LCD Calculator
Sharp Professional Series  EL-330TB semi desk top calculator has a slant LCD read out design and is lead and mercury free.  It has a large 8-digit (15.0 mm) LCD display with punctuation, + Tax, -Tax keys, switches between solar and battery  power in low light conditions, 4-key memory and conversion function.