Where did you get it? If you check the first post on the thread, there is a standard format that is to be followed when asking for authentications, to give seller information and the photos typically required.
That said, I've looked at your photos. I'm not one of the usual authenticators here, but I own this bag in a different color. There are several things that strongly suggest to me that the bag in the photos is not authentic BV. I'll let the others weigh in with their thoughts, too.
I was left by my grandmother all her bag collection which was 184 bags
plus purses...she was a fanatical buyer of bags which include 3 Birkins
in this collection,,i have no history of any of these bags and i have been
told some of my collection are fake but i have also been told most of them
are authentic..the reason why i ask about this particular bag is due to the fact that there is no Bottega Venetta name anywhere on the actual bag that i can see,,,So if it is a fake...this must be the worst fake ever, seeing as they never even bothered putting the Bottega Veneta name on the bag!
I have 2 other Bottega Venetta bags and a wallet and the material on them feel and look exactly the same as this one,,,Very Interesting Indeed thank you