I have a set of BBS style wheels that were on an 811 911SC years ago, they look to be very well made and have some markings on the backside including Japan, 16SX-1, and some date stampings 6/84 so looks like they were made in June 1984.
Previous owner described them below but they were on the car when he got it so no idea who the manufacturer is.
2 16 x 7 BBS style wheels 20mm offset (light weight 18lbs)
2 16 x 8 BBS style wheels,10.8 offset (light weight 19lbs)
Any help or info on who the manufacturer of these and feedback on quality would be appreciated!