It apears it is a Gt , A GT /CS is a California special .A california special has a spoilered fiberglas trunk lid and end caps and fiberglass tail light panel with T Bird tail lights ,same as a Shelby would .Looks likre a clean car in the pics although it has 65 -66 exhaust outlets in the rear valance .Things to take into consideration when valuing a car is ,what condition is the body and paint ,what condition is the interior in .Does the suspension and drive train need a rubild ?