Check the listing for details. Smith Corona Mark X PWP Personal Word Processor Model 5D. Condition: Used. Listed at 60.00 USD. You are viewing a Smith Corona Mark X PWP Model 5D personal word processor from the Brother Correctronic series. It is a typewriter designed for office use, featuring advanced word processing capabilities. This unit belonged to my mother since new, and I’m selling it for her. I tested everything I was capable of testing, and the typing/word processing functionality is great. There’s something really satisfying about hitting a key and having it print on the page. I have no way of testing the disc drive since I don’t have any discs anymore, but I’d just assume it doesn’t work. If you can come up with discs, you’re free to try it, but I won’t accept returns based on the disc feature. Everything else works perfectly. Please contact me with questions.