Interesting set of stingray tires

[Jrodarod]

I have two slick white wall tires look to be for a Fastback . General Brigadier Slick Nygen Cord . And a set of green tires. Front Vista Spider 20 1/34 and rear Goodyear Grasshopper 20x2.125. Rear tire has a film on it that wipes off.

 

[Jrodarod]

I need help on pricing them. Thanks