Locking ignition coil from what I can find fits a 1933-40 Chevy (possibly other GM cars of that era). Coil itself is stamped DelcoRemy 538-7. I've had this over 30 years and have no idea where/when I got it. (it's from Michigan when I lived there) Will ship in a USPS medium flat rate box. Continental US states only. You pay shipping. Richard >>> Movin/on