It works when there is no back on the calculator, but as soon as the back is put on the screen doesnt show up, so selling as spares for this reason.

The Sharp EL-330 Calculator Elsi Mate is a vintage calculator from the 1980s, featuring a regular size key and basic functionality. It comes in its original case and is powered by batteries. Made in Japan, this pocket-sized calculator boasts an LCD display, making it a reliable and compact office equipment for basic calculations. Perfect for office or home use, this Sharp EL-330 model is a nostalgic piece of business technology from the past.