This is a CASIO calculator. It's unclear what era it's from, but it seems to be a collaboration product with the drug Captoril. Visually, it appears to be quite old, so I'm hoping to sell it to someone who wants it as a collector's item rather than for use as a calculator. Also, the original box has stains, color fading, and is crushed. Please understand the above before purchasing. It will be wrapped in cushioning material and shipped with measures to prevent rain damage. I also have various other products for sale, so combined shipping is possible.