Sparkler Filters of Conroe, Texas, prides itself on being a leader in the world of chemical process filtration. If you buy an automatic nutsche filter from them, though, they’ll enter your transaction on a “computer” that dates from 1948.

via If It Ain’t Broke, Don’t Fix It: Ancient Computers in Use Today | PCWorld.

The key punch isn’t the only massive accessory in Sparkler’s arsenal. The 402 also links to an IBM 514 Reproducing Punch, which has been broken for three years. When it works properly, the 514 spits out punched “summary cards,” which typically contain the output of the 402’s operation (such as sum totals) for later reuse. Sparkler stores all of its punched data cards–thousands and thousands of them–in stacks of boxes.