'63 Valiant Newbie

What is the 4th digit in the VIN number (will tell me which plant assembled the car) as all the plants did not have standardized option codes in 63?
Here’s the VIN plate - I’m not sure what is the 4th digit of the VIN, since there’s a 17 stamped from the front, where the remaining digits are stamped from the rear. -Dan

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