I hope this wasn't a rarity!!

On a mini-vacation, the wife and I hit a few antique shops in Minnesota.
I found an odd Stanley plane, well I think it was a Stanley, about size #3. Although the body wasn’t marked, except for “Made in USA”, the blade was marked “Stanley Two-Tone”, and the iron was painted a pale yellow. The inscription wasn’t even the usual Stanley logo, but was in the font that Chevrolet used as their name badge on the hood in circa 1956-57 cars.
Anyway… I didn’t buy it; it was $75 firm, and the blade had a nick, and the body was rather rusty. I’d never heard of, or seen one before.
C,mon Stanley experts, please tell me about this plane! Just a Stanley marketing gimmick, or a rare collectible?

-- Einstein: "The intuitive mind is a sacred gift, and the rational mind is a faithful servant. We have created a society that honors the servant and has forgotten the gift." I'm Poopiekat!!