Need your help. What do I have. Recently picked up two sets of low back seats. Each set has one locking and one non-locking seat back. One set has "recaro" stamping on adjustment knobs, and the other is plain.

Now for the question:
If we set the seats up for a LHD vehicle (adjustment levers to outside of vehicle), the locking seat back is on the passenger side, and the non-locking is on driver side.

Are these seats for a RHD vehicle?

I have a 1965 911, which set would be period correct for this vehivcle, the set with the "recaro knob" or "plain knob"?

What year are these seats from( plain knob vs Recaro)?