[Mr70]

I thought the white,bottom embossed & sometimes found with or w/o w/black script filter was commonly installed during engine (break in) assembly at both Flint & Tonawanda,while the nearly same filter,but now w/blue script like yours on the left above,was available OTC and retail back then.And possibly quickly replaced the break in filter during dealer prep before the new owner picked it up too.
Charley's car may be the only one left that can answer this question..