This is the tag from the 2nd line on the list, the 1968 340 auto. The seller says the date code is 8B. I guess August 1968, plant B.

I don't see any week/year codes on this tag, and the Hemi tag does not say Prestolite at all, meaning that appears to be a tag for a Chrysler made distributor, not a Prestolite made distributor.

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If you don't see two dolphins, you need a vacation.