Does anyone know what brand/type of blackwall tires came on the 1938 Shelby Speedline Airflo super in the attached ad? To me, they look like BF Goodrich Silvertowns, but I just don't know for sure. Also, can anyone tell me where this deluxe Shelby would have been available at retail? Western Auto? Monkey Wards? Catalog sales? Who carried such a deluxe, expensive bike on the showroom floor? Attention: @slick @poolboy1 any other Shelby nuts out there? Thanks!