10.5C. Seldom found NOS deadstock 1967 Santa Rosa engineer boots. Steel toe. Brass hardware. Biltrite welts. Heel to toe 11.75", width 4.25", heels 1 5/8th", height with heels 12 3/8th", calf widest 15". Tiny scuffing here and there from shelf life, some "greening" from age to brass hardware but no rusting or discoloration.