I'm posting this for what it might contribute to this discussion, and because I find stella dials fascinating - although I've never seen one in hand.
Richard - as always I really appreciate your posts and all I learn from them.
Here is a post on an Omega forum by Steve P, who used to post regularly on VRF, and perhaps here, but no longer does. He is (was?) a serious collector of 18xx Day-Dates. This is some of his collection, including many, if not most, stella colors. If you are a D-D fan scroll all the way thru his post, but be prepared to contain your envy.
https://omegaforums.net/threads/here...t-on-dds.1056/