I do like the last Pic you posted .

I think the back stainless part is basically a 1957 De Soto wheel cover.  You bolt on the 1956 Chrysler spinner and Presto-Change-o!  You have the 1958 Adventurer wheel cover.

I replaced the ol' Pie Plates today!

http://www.forwardlook.net/forums/forums/thread-view.asp?tid=73780

Thanks, Nathan.  Yes, of all the non-De Soto centers for those spinners, I think the Windsors match my car the best.  It seems like there is a blue center for the New Yorkers?  

Yes, Sid - that plain ring struck me as "plain" too!  However, from my past experience with painting wheel covers, my inclination was that the more I paint wheel covers, the less I like the end result.  Thus, I was a bit cautious there.  Maybe I'll revisit that in the future.

Nathan - thanks for the run-through of the center emblems!  I thought there was a third variant for Chrysler.  I heard at one point someone was remanufacturing the De Soto wheel centers, but a web search bore no fruit.  I'd love to find a set of those!

Are all of those wheel emblems / hood emblems interchangable?  That would have been pretty clever of the good ol' Chrysler Corp!  

The rotation on the wheel covers in the images is interesting too.  I patterned mine off the ones where the "bottom" spinner arm points straight down to the valve stem hole (like the 56 New Yorker).  It appears that the 55 New Yorker and De Soto examples have the "top" spinner arm pointing straight up opposite the valve stem hole!