Nice find. I always love unusual JCH's. I have seen a few Higgins bikes that appear to have Shelby parts, but this one strikes me more as a CBC / Ross bike than a Shelby one (based on the chainring and dropouts). Hope someone can deny/verify that.
Last year, there was a JC Higgins bike at a local show that definitely had a Shelby frame and tank, but which had other parts that looked Murray (?) - Sure wish I took a picture of it!
To my knowledge, the following manufacturers DEFINITELY made JCH bikes:
Huffy, Columbia, Monark, Murray, Puch (Austrian, mostly the lightweights)
And I also believe- but don't know for certain- that these manufacturers also made some:
Shelby, CBC
I just found this image- this isn't quite like the bike I saw at the show, but it also seems to have a mix of brands; the rack, chainguard, and fender braces are Murray, but the frame and tank is Columbia. I'd like to know how this sort of thing happened.
I guess I've gone a bit astray of the original topic, but I thought someone might find all this interesting.