This is a vintage Dataking LC-800 liquid crystal display calculator that is NOT Working. This comes in the original box with instructions, with the box having some shelf wear but no damage. The keypad still looks new, and it is in overall great condition, given this is 50 years old! The BAD -The DISPLAY Window is DAMAGED? As you already know, this Dataking LC-800 calculator was one of the first calculators to have the liquid crystsl display. Please ask any questions you might have, but don''t let this get away.