1971 duster

We have 2 GF7 cars both with very vague information. One is a 4speed and one not specified. I need more info on one with a sequence number of 164016……might that be yours?? PM me if so, we could use any info on these cars that we can get! If it’s not yours and we can get yours in the registry, please….contact me! Thankyou in advance.
Finally got a chance to take a few pics

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