Anyone seen this free-hand Hopi craft hallmark & the artist it might belong to?

So Jason are the ones in the middle that are machine made, do they have a slightly sloppier appearance than the other machined ones on the left (While still being absolutely beautiful :heart_eyes:) partly because they are a thinner gauge material? I would also like to ask if you know who made the handmade ones and if there’s any evidence in your opinion to tell one pearl maker from the next when you can tell they are in fact handmade…it might help with cases where we don’t have a lot of other clues as to who the maker is for the rest of the piece. Thanks

Wow, I was wrong. I thought the middle ones.