Vintage 1976 Commodore S-61 S61 Statistician Calculator . Condition is Used. Some of the paint on "Commodore" has rubbed off but otherwise in excellent cosmetic shape. It appears to work but I am not smart enough to walk through all of the functions. All of the LEDs look like they work but if I depress more than two digits the far left three LEDs come on, the first one brightly and the next two dimly. Not sure if it has to do with the batteries but the rechargeable batteries need... to be replaced. It looks like three Radio Shack AA sized NiCad 1.5v.x3 were already installed at one time, long ago. The interior is still clean though but you can tell right away that the batts are shot. Sold as-is.