At first glance I thought Maxi Twiggy, but nah. Google lens says that yoogi's calls it the Boston. I don't know how accurate that is though.
I think this is one just like it.
https://www.yoogiscloset.com/300320-balenciaga-black-lambskin-leather-boston-bag.html
In case you were interested getting the one from TRR, take a closer look at this. Looks to me as if the piping is broken.
