Doesn't say which part is blue. The C-3 lens had a bluish tint to it, but somehow I assume he means the body, which would be a little different. Somebody's idea of customizing??
I'm old enough to remember when the C-3 (a.k.a. "the brick") was everyman's 35mm camera, and I knew several people who had them. Let's face it, it WAS a better-looking camera than the contemporary Kodak 35.
I have one that I happened to run into in, of all places, an antique store up here in Arroyo Grande a couple of years ago. They wanted $20 for it -- sold!!
In those days they were primarily used for slide film. Not exactly a Leica or Canon, but they must have had something going for them. They sold at the time for about $70, which in the '50's wasn't exactly cheap, either. And considering the numbers of them that must have been sold, they at least had a reputation for doing the job.