'65 FPC lists two windshields for A-bodies: 2242 368 Clear and 2242 369 Tinted. The clear ones are clear top to bottom; the tinted ones are green tinted (like the side glass) with a blue strip at the top. Standard equipment was clear glass all around. Optional was tinted windshield or tinted windshield, side, and rear glass.
Those are the same P/Ns as '63 and '64; in '66 the P/Ns are 2664 417 "Clear" and 2588 950 "Shaded" (Canadian book) "Tinted" (US book). Same glass '63-'66, though.