30 x 3 Firestone Tire, all black, treaded

This is the original Firestone tread pattern that often was found on early Model T.
High pressure, beaded edge, clincher tires are made to be maintained at 50-60psi. Any less can cause the tire spin and cut of the stem, rib cuts and the possibility of tire coming off the wheel.
Fits the 30x 3 size wheels used on the front of early Model Ts as well and all four wheels used on earlier Model S cars
Tube Type 4 Ply Nylon tire.
Overall diameter is 31.30" and tread width is 2.30"