Wow, you're a genius! And I mean that in the most sincere kindest way. I just looked at the bottom of the attachment box and it is red on the back of it and you're correct it is very hard to see with the design of the box but I CAN make out where it says AC NH!! the rest of it is very very hard to see but I'll look again. I'm pretty bummed out about the needles. I really wanted to sew with this and make it my regular sewing machine, not just a collectable item. I don't have a grinder and I have no idea how to mess (adjust) with the needle bar, (I was looking up info on that too). I have about 6 needles that came with it but I'm not sure how long they will last? I guess I could just save it for delicate things.