No, Ragnar and Number 1 are both his offspring, and they don't have that comb. You can see their combs in the pics I posted a few posts ago. Number 1 has a Leghorn-type straight comb and Ragnar has a nice erect comb, but both combs are better than Hei Hei's.
Of the two show bird junglefowl I mentioned, they are also Hei Hei's offspring but they have 7 points on their combs and their combs are erect and do not follow the contour of the head as the standard calls for.
I should have tried for some pictures of them this weekend but didn't think about it. They need to grow some more anyhow.
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This is what the RJF is supposed to look like by ABA standards. The two by which I speak more or less are conforming to that look. Although the ABA standards call for a red ear, even though their illustration has a white ear and they do accept a white ear without penalty. One of my potential show birds has a red ear, one has a white ear.