I have 2 consecutive miscut $10 bills that I know are legit because I personally received them decades ago in a withdrawal from a Citibank ATM machine in New York City and just put them away in a box. They were new bills and have never been circulated, though I did store them unprotected in a box with a few other items and have occasionally picked them up and looked at them over the years. At the top of the first bill, one can see a bit of the printing from the previously adjoining bill. I've never tried to determine what these are worth, am interested to know. Thanks.
The bottom one is not miscut enough to garner a premium. The top one has just a little of the print of another along its top edge. There might be a small premium attached to that one.