I think the tag is good. Appears to still have some filler in the rivets.
I have become so cynical, I would want to take a mirror, remove the cowl grill and look at the back side to see if the rivets have ever been out. Appears to have NEVER been off the car.
Very late build, first week of Nov 69.
As long as the build date lines up with the vin. If you don't want to go public with the vin, you can check over at CRG right here:
http://www.camaros.org/geninfo.shtml#HowMany
VIN should be around 708000 to 710000.