vin #'s 1 9 4 3 7 8 S 4 2 6 6 7 5 ....B/M vette?

[Vette-me]

Based on these vin #'s wondering if it joggs anyones memory, or just strikes any suggestions??
Could this possibly be a original B/M phs 3 gt vette. My father owns the car and he spoke with Joel Rosen a few days ago and he told my father he did make a few 68' however he would not give any more info without being paid to to doc. search.........so what do you all think. My father is looking for the build sheet.......any suggestions on were to find one on the car.....?
Also does anyone know if the zone and dealer number for baldwin chevrolet is
zone # 27
dealer # 019

TT