"Chuck" owns this site http://www.provamo.com/
To access the good stuff, one must be a contributor (read rules)
this site allows the search of cars that have been submitted
I did a quick search of all "74 original color silver". there is maybe 30 or so on file. the on file narrative is only what the contributor provided. I didn't see any thing obvious that I could say was your Fathers
the VIN would be the best search
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