This rare antique Friden STW-10 electro-mechanical math calculator from 1950 is a true gem for collectors and enthusiasts of vintage computing. Its brand name and industrial style make it a unique addition to any collection or display. With a history rooted in the laboratories of science and mathematics, this calculator was once used by mathematicians and teachers for scientific research and algebraic calculations. Its antique and vintage design exudes an air of history and culture, making it perfect for genealogists and history buffs. This piece is not just a relic of the past, but a piece of art that showcases the design and display capabilities of early computers. I have been told that this one is in pristine condition compared to most. It has no dents, it powers up but I am told something is probably stuck in it, from the noise that it makes. They keys work when it is just sitting there, as much as I know to try them. Don\'t miss this one. And it comes with two cords.