All Merrow machines that I've personally seen are actually crochet machines. I have one that does a plain crochet and an 8-stitch shell. You can tell if it's a crochet machine if there's a little latch hook to the right of the needle. Fascinating little machines. We have a couple at the store where I work that we call "blanket-stitch machines." It does a plain crochet stitch around two pieces of fleece or minky. It gives it a nice finish. We've been doing that for customers for at least 30 years.