metal crank sunroof.

Does anyone know what year the metal crank sunroof was offered as an option? I have searched my books and cannot find any mention of it at all. I've heard 1964 and I've heard 1967. Any info you could pass my way would be apreciated. Thank you in advance.

The metal crank sunroof started with the '64 model year.

I own a '64 w/metal sunroof. Some refer to it as "13 turn sunroof". I have learned that the "Ragtop" was offered until '63 when they changed over to the metal.