Listing is for a vintage HP 33E calculator. Appears all digits work and light up. Buttons work. Battery compartment has the battery holder. You need to make sure the battery contacts actually rest on the calculators pads because if they do not the calculator will not turn on, this is an easy mistake to make. See video for how small of a difference this makes. There is a slot on the top that appears corroded.

Please read entire listing, view all pictures, and ask any questions before making a purchase because I no longer accept returns. But please let me know if you have any issues after purchase