Brand: CASIO
Model: HL-805
Type: Calculator
Picture: CASIO HL-805
Batteries: AA x 2
Lifetime: Introduced: 1981
Terminated: unknown
Notes: This is about as plain as they get. And it doesn't look like a CASIO calculator to me at all. Still, this was one of the very first calculators in my collection.

I've seen pictures of this calculator with a darker housing as well.