The Wilkinson Arms guns and specifically the "Linda" Carbine garnered some attention in the 70's. However production problems along with cash-flow caused the company to fail (IIRC). Some of the early units suffered malfunctions, mostly failure to feed. The only example I ever saw was only 15 rounds out of the box and it broke an extractor at round #34. This unit was fixed and at round #82 something broke in the trigger mechanism. Gun would only feed FMJ and no JHPs or JSPs would run in the gun. Gun was sold after it was repaired.
I think that most collectors of these guns have ironed out the problems themselves or have later models that Wilkinson didn't have to buy back. It remains one of those "good ideas" that never got the funding necessary to make a real winner out of it.
BillCA in CA (Unfortunately)