Forgive me for reviving a thread that's 5 years old, especially as my first post, but this seemed to be unresolved, and I did find a little bit of info about this item, as I just purchased one today, as well. Plus, I think I may have gotten a clearer shot of the maker's mark when I took photos. Thought I'd show both sides, and that it separates for easier cleaning, in case that was useful at all.
As I said, I did come across some information. No maker identification, but it did narrow things down as to time and place.
"That set is often found on Italian metalware. It's hard to find a good image of the [mark] ... That combined with the 95-100 is usually found on silver plate and silver finished items from Italy. Unfortunately, they don't tell you the maker; they're just references to the country of origin.
It looks like these were imported in from various factories during the early part of the 20th century. There are the same pitchers and vases with different stickers on the bottom. That usually indicates that a few different companies were responsible for importing them to different parts of the world. Based on when these marks were used, they date to around the 1930s to about the 1950s. It features a four-footed, pedestal base, ornate handle, ruffled spout and an Acanthus design.
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I'm going to go with "mermaid" as a guess, too, although at first I thought it might be a bell-like flower.
I don't know if that helps folks at all, but now I'm hooked on the search, like a mystery to be solved!