Is this OEM? Did they use a machine allen screw and a sheet metal screw in the front edge of the vent frame to door attachment? Mine are the same on both sides.... '63 Dart ragtop.
both my 66's and both my 65's were screw (on top)and allen head (on bottom). so it might be stock but I'm not sure. oops reverse that. Allen on bottom and screw on top... sorry brain fart.