Yes, SA did hand-make a very small number of M14's without the selector cutout on the receiver. They were indeed semi-auto M14's. I think the procurement folks turned the idea down. They did not want a semi-auto in troops hands in the event of war, as it was felt the full-auto version was going to fight the war. ATF rulings did not exist in the timeframe. Not even sure ATF existed back then. In retrospect, it was a good idea that deserved support.