As always we need to warn that unrestored does not always mean unaltered by previous owners. Just because this car has/had a specific detail does not mean your car was built just the same. Always do your research, document your findings and make the best choice for you and your expectations.
This example was photographed at a MCA National show a while back. Car shows some use but allot of care by the past owners and is an interesting car to view.
Projected build date might be mid June 1966 (6R07T2238xx). No way of telling for sure
Hope the sharing of these will help all of our understanding of these cars and foster some discussions. Car has had at least one respray with the door jambs (to the weatherstrip) was done. Not a ton of really good pictures but did find some interesting things that might be seeds for good discussions and/or provide some info for members with similar cars.
E2 - Inner and outer fender bolt head markings
E3 - Cowl area
E4 - Rear unpainted valance screw heads
E5 - One of two painted rear valance screw heads. Often these are of a different style than the other retaining screws along the upper edge since there were installed at different points along the assembly line
More to come