This is a Casio SL-910LA. It was in storage, and I'm not sure how long it's been there. I listed two, and one sold, so this is the last one in stock. The instructions are a bit dirty, but the main unit appears to be unused and unopened, as it hasn't been taken out of its bag. *I can't guarantee this 100%. It's solar-powered, and the numbers appear on the screen when exposed to room lighting. I've confirmed it works by pressing the buttons through the bag. #casio SL-910 #SL-910LA #SL-910 The CASIO SL-910LA is a compact calculator with 2-WAY POWER. - Brand: CASIO - Model: SL-910LA - Power: 2-WAY POWER - Accessories: Instruction manual - Case: Black case Thank you for looking. *Also listed on other flea market apps.