Here is jar base to my fry 117 visible
I know the holes along the very outside edge is for the rods
There is a pair of holes that go through the inside lip. And a pair that in side the lip
I'm assuming that one pair is for the gallon markers?? Not sure wich pair that would be. But that would still a pair of in used holes??

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1970 pro street cuda.
1970 cuda convertable