Could be and E and F at the same time. He makes a break at the bottom of the F but then shows the extension of the E. It's a strange way to hold indeed. As I keep looking I don't think it's anything to do with a letter. It's not traditional for an E or F. With the cutouts it almost seems Greek.

Could be and E and F at the same time. He makes a break at the bottom of the F but then shows the extension of the E. It's a strange way to hold indeed.