You very well might be right, pianoknight.
I wonder what set they used to model their set after.
I know that the HOS set was copied from a true Dubrovnik set that Frank Camaratta had, probably the later Fischer model.. The Noj Dubrovnik II is also patterned after that set. So the similarities between the Noj and HOS sets would be explained by that.
The CB set is quite different than the other two with distinct differences like one less collar on the other pieces and the cruder looking knights.

Hi Eyechess, I agree that CB's version is clearly less detailed than the others but I wonder if this is due to less effort being spent on carving the pieces or due to a conscious decision made by CB to produce the set in such a way based on their own interpretation.
The reason I ask this question is, if I look at some of other sets produced by CB at a similar price range, I can see that the pieces are very detailed, significantly more detailed than CB's own Dubrovnik (obviously not directly comparable as designs are very different).
So I wonder if CB deliberately designed the knights to be simpler, which I like by the way.
I am sure if CB wanted, they would be able to produce the version that closely resembles the original design; however may not be as detailed as NOJ through aficionado's eyes.