Hello Dr. Huber. Thanks very much for the inquiry concerning your 'Chrysanthemum' platter, and for sharing your fascinating story. Even though your ChatGPT image may not be strictly accurate it may be the best method available to see what the pattern originally looked like. Though we have a number of similar floral patterns in our database I don't see any to match this. It would appear to date from the 1880s or 1890s and would probably be considered aesthetic in style. I can't help right now with pattern name or maker but perhaps in time something will turn up.