Are the double white lines an insert in the tire? If they are, those tires were in the '66 Buick Riviera by AMT... Here's a picture showing the tire portion quite clearly, the insert is NOT the double white lines that comes in the kit. That insert is a flat one from the... *PIC*
... Lindberg '53 Ford kit, you can faintly see the Firestone lettering that was sanded off the whitewall.
This combination makes up one of my FAVORITE hot rod tires... I've bought more than a few Buick Riviera kits, just for those tires.