Handle Interior Vent: 65-72 era & 1/4 W/Clear Knob you choose the "Encore -

you choose the "Encore - Regal" velour seat trims

1967-69 Firebird & Camaro Seal Kit - body to the tank and prevents tank movement

additional

these are tough to get and often very  expensive so if you have any alternate that is 101% safe

Handle Interior Vent: 65-72 era & 1/4 W/Clear Knob you choose the "Encore -For the small handle vent cranking.. this is used on various mid late sixties GM vehicles including the Chevy Belair & Parisienne Laurentian, right up though to 72 Chevelle, El Camino, Full size, Impala and heaps more where vent or rear side 1 4 windows used a smaller handle. Supplied individually. THIS HAS THE CLEAR KNOB.. harder handle to get.. Sometimes people mistake clear for faded gold.. meaning theirs is old and fades into a goldie sorta