ID my hand blown flanged (mid-century?) vase, please

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This beautiful aqua vase with three "fins" or flanges has a ground out bottom and is clearly mouth blown. It is signed in cursive and I can't make it out. It is dated '59 or '99. I believe it to be mid-century. Beyond that, I am unsure. Anyone know who it is by?

Thank you

Julie

Here is picture of the bottom. Really very yummy.

Here is a picture of the signature. It looks like M. T _ _ m l e and then 59 but I don't want to rule out 99 although it looks mid-century to me. There is a possibility I am reading the letters incorrectly.

It does not look like their production but could it read Mtarfa?

John

Thank you so much for the suggestion, JoFish. I found a Mtarfa ID guide
and although there is one signature done in a similar way,
there are a couple of problems (like the last letter looking like an "e"
not an "a") that make me think it is not signed Mtarfa. I managed a much better shot of the signature. here it is.