When was the first aluminum Starcraft Supersport made?

[STARCRAFT16SS]

When was the first aluminum Starcraft Supersport made? ...It looks like Starcraft has been around since 1903.
I've seen a few project aluminum Starcraft Supersports from 1970...how far back do they go for the Supersport model?

 

[STARCRAFT16SS]

Re: When was the first aluminum Starcraft Supersport made?

Been doing some more looking...found Salt4Life has a 1969 Starcraft SS
and sloweroldman has a 1968 Starcraft SS