Hi Bigal-- I saw this "anonymous" bag in that other forum we are both part of. I love a good mystery and a little search work so I looked up some stuff while I was searching for my own info on the above bag. Yours seems to be made by Linea 86 Pellateria which is registered to a street address in Florence Italy-- a mecca for amazing leather studios. There are several other Bay listings for that label and they have labels that are more easily read but definitely the same as yours. LP seems to be only a recently emerging company and according to their website they were founded in NYC and since relocated to LA-- but no Italy. They claim they use "Italian leathers" but a quick check on
Amazon shows their production (at least in part) is in China. I think the bag you have is very special and was handmade by a small leather workshop in Florence (Firenze) and was undoubtably not inexpensive.
I am no expert, especially not on Linea Pelle, but I enjoy the quest to solve a puzzle like yours. Hope that helps and that I am not out of line!