Steel Belted Radial A539 Tire from Yokohama (175/50R13 72V). Designed to be run tubeless, this very low profile tire will work fantastic on 13" wheeled Mini or even a Sprite/Midget.
If you want handling and performance- this is it!
Markings include; Made in Japan, Treadwear 300, Traction A, Temperature A, (Circled) E4 0216988 (E4 indicates E.C.E. approval originally in the Netherlands, the preceeding "02" is for E.C.E. Regulation 30 governing passenger tires). Plies: Sidewall: polyester 2, Tread: polyester 2 + steel, 2 + nylon 1.