Correction, the Opal / Radiant Violet was the “First” Violet color offered on a Stingray starting in April ‘64 and continuing into March 1965.
About a 11-12 month offering.
Stoney’s G4 is Opal.
When Terra Cotta was dropped as a color option in April ‘64, Schwinn announced two new colors, Red and Violet for a total of 5 color options.
My opinion thinks the early Opal Violet is the lighter shade opposed to the 65 and newer Violet.
Two of my Violet Stingrays, plus two of my Violet guards show the difference.
View attachment 1605690
View attachment 1605691
View attachment 1605692
View attachment 1605693