[PeteLeathersac]

Welcome aboard!.
If your car is GM Canada documented, what info are you seeking as the docs should provide the whole story for options as shipped w/ your Vin?.
Does the A-51 on your docs denote something more than the bucket seat option itself?.
If you're thinking the car was equipped w/ factory leather and the GM Canada docs don't specify this, I'd be skeptical but since anything's possible dig deep into the car itself for clues..
Canadian cars sometimes contain option info on the cowl Trim Tag that US cars don't so what all's included there?.
Have you pulled the seats and carefully looked for attached or loose tags?.
What are the door panels finished in...if leather too check them for tags and markings too?.
Did George provide you which Dealer or Dealer code the car was originally delivered to as this may provide a clue too?.
Is your car one of the Canadian SS Small Block cars?.

Good luck w/ everything!.
[img]<<GRAEMLIN_URL>>/beers.gif[/img]
~ Pete