1968 GTS Convertible

Hi,

I own a 1968 GTS Convertible 340 white top and interiour - Dark Turquoise (seem original, but sometime ago repainted)

I Like to know if anyone know this GTS Convertible or has more info on the car?
I'm trying to find as much as history on the car?
Already contacted the previous owner who has solt it to me.

Thanks, any help from here is appreciated!!