Fernando, everything you say is as I understand it, however, as it was explained to me, the open-sided lower die was not used with this Indian type, but rather a type of die that restrained the sides, resulting in a more even form.
In any case, however they were made, they're something I like, and although I know next to nothing about them, if they were still readily available, and still reasonably priced, I would still buy them.
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