Dunlop's signature quality, crossply tire of the 1930s, the F4 was the fitment of choice for the most luxurious cars of the era. As such, it remained in production for the vintage car market until Fort Dunlop's final closure in the 21st century! Its sculpted side and shoulder are extremely recognizable and a symbol of quality. Ensign using original Dunlop moulds. The result is manufactured in the UK as the Ensign F4 and comes in various sizes to suit 17-21 inch wheels. This 600/650-17 size Ensign F4 tire is the perfect tire for: the late 1940s Rolls Royce 25/30 and Silver Wraith; Daimler Light Straight 8; Daracq M67, M75, M78 and H78; Delage D6 and D8; Hotchkiss 620; and Mercedes 290 and 380. This is a cross tube type car tire.