I'm not thinking Adam/Helmstetter because the pin isn't consistent with the time of those designs, but I'm at a loss as to what they are. The coated wrap also adds to the mystery. One of the previous comments was that they were common on Adam/Helmstetter products, but I've never seen one. The squiggly-line ringwork has been used by McD, but not in a metal jointed cue to my knowledge. The checkerboard pattern (butt-sleeve #2) and large checked rings are reminiscent of Heubler. Nice looking cues, but I fear that I've muddied the water further. Good luck.
Adios,
Pizza Bob