Original White walls - suppliers?

[Coley]

Anyone know who makes/supplies original (thin line) white walls tires for the 67-'72' trucks?
Ideally it would be a 235-75R15" tire with a C load rating
...these aren't the antique wide walls stuff for the old 50's cars but the thinner line/strip whitewalls.

I know they are out there but always best to check with the 'gold standard' of Gm truck parts and information here on the forum....lol

...that said, anyone running original whitewalls on their original trucks or resto's?.....if you have pics or feedback, post 'em up.

All good
Coley