Am I getting a Lord Fauntleroy vibe? '30s sounds good to me.
A similar treatment is called "cloud glass".
I'm not convinced that's porcelain of any stripe. Stoneware maybe? or ironware?
Excellent information. Maybe a bit later than you were hoping, but I don't see that as any detriment. It's a beautiful item.
How do you know it was " a prototype / template for lack of another term, prior to the printing process"? Are you thinking of color separation?...
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