In the 1960s, most GM lock cylinders had a code stamped into them. That code (4 digits) would be looked up in a book that the parts department had. That would reference the necessary cuts to make a replacement key. This required a special cutter that was also in the parts department.
The locks in that car were as follows: Ignition and doors took a hex headed key. Trunk and glove box took a round headed key.
As far as I know, there were no records kept of key codes by VIN. That did not start until the late 1970s. Also, some time in the 70s, they stopped putting the codes on the lock cylinders.
As I recall, those locks were fairly easy to pick. They were only 5 or 6 tumblers, and they did not have many of the "high security" features of later years. In that era, many just left their keys in the switch. Locks were only made to keep your friends out. That car was made before the big campaign on TV to "lock your car, take your keys." See how well brainwashing works???
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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