Way back in 1979, we drove this car to Atlanta for the MCA Grand Nationals. After winning the 65 Fastback class, it was an enjoyable ride home and a few more years of showing. Eventually the restoration aged and the standards became higher, so the car was 'retired' to limited local show and cruise night driving. It has sat for several years and now it's time to re-restore it to current standards. Fortunately it is very solid and most everything is correct original stuff that I rounded up the hard way since there was a very small repro market back then. In the process of disassembly, I uncovered these markings on the core support. I know about the rotation number, the paint code and trim code. What does the circled 'BL' mean?
[Blocked Image: http://i261.photobucket.com/albums/ii59/ajd350/DSC_0015-1.jpg]
[Blocked Image: http://i261.photobucket.com/albums/ii59/ajd350/DSC_0012.jpg]