Jack Hurt, Cobra racer, helmet from 1968

Chloroethane, commonly known as ethyl chloride once widely used in producing tetraethyllead, a gasoline additive. was also used as a topical anesthetic to instantly numb skin, as a refrigerant, and an industrial solvent It causes temporary drunkenness, lack of coordination, and potential liver or kidney damage if inhaled So, why put that on your helmet? https://www.facebook.com/photo?fbid=10240380793767610&set=pcb.3026264814233415