The kings have unique crowns and collars.
Horn & McCrillis, Est. 1846, No. C-450, Made in U.S.A.

Very nice, never seen one of this pattern but I have seen Horn made sets before.
Thank you, Alan. I've seen simpler, cruder Horn patterns. I find this one quite pleasing. The pieces feel good in the hand, too.

Here's an example of what I'm talking about when I say a simpler, cruder design. This is a Horn A-2 set with a 2.75" king.

I occasionally see the A-2 set but never give a second look. That C-150, on the other hand, is quite nice. Is that a recent find? I've been taking a liking to the smaller sets which I use on my Drueke 1.75". Anyway, this Horn & McCrillis is another interesting example of how the American chessmakers were attempting to stay within the Staunton pattern while producing something distinct and unique. I find this a lot more attractive than the Drueke recently posted. Do you have an idea as to when this set was produced?

Up, I am told it's from the 1950's. I don't have a catalog, but that seems about right. Also, I think I misread the box, and it's a C-450 set. I agree, I find this a more pleasing design than the Drueke I recently posted. On the other hand, the Drueke is likely early 20th century, and by the looks of it aimed at a lower market niche. I have another Drueke coming in that I expect to be more comparable to this Horn set.

That's a Beautiful Set !! But isn't that "C-450" instead of "C-150" in the pic? Just thought it might help in research

That's a Beautiful Set !! But isn't that "C-450" instead of "C-150" in the pic? Just thought it might help in research
It is, as I noted above. Thanks, Ronbo. Good catch.

I recently came across (and purchased!) a Horn c-550. I can't find any record of that model existing on the internet but it looks very close to the c-450 and c-750. Will post pictures in the AM!

Here are some pictures of my Horn C-550 Chess set. I can't find too much information about it on the internet save for the other posts here on chess.com. But, it's a lovely set for sure! Nice weight, interesting but solid design. Apparently it seems to be from the mid- 1930's according to one resource I found, but that's just a guess.
Enjoy!
Here's an ad from March 1935 Chess Review:
(resource: https://www.scribd.com/document/62620988/Usa-Chess-Sets)
Here is another vintage set made in the U.S., the Horn McCrillis No. C-450. Like Drueke, Horn was driven out of the business of manufacturing wood sets in the U.S. by Lardy. This set sports a king of 3.25 inches. It's nicely carved and finished. It's well-proportioned and weighted. Unlike the Drueke set I recently posted, I easily would enjoy playing with this one.