Ford Model T security collar for the tire - no key. Made in 1914 by the Security Mfg. Co. This is called the Security Auto-Theft Signal System. It locks on the tire of a Ford model T (possibly other make autos of the time) with a key lock mechanism to prevent the vehicle from being started and driven away by a thief. Provide your name and a phone number when responding, no shipping, local pick-up outside of Arroyo Grande, NOT a dealer just a private party selling family belongings - offers only considered before meeting, CASH ONLY