Vintage Antler bag.
Nice thick, quality material. Does have nicks & marks as you'd expect with age.
I personally think it adds charm, but please see photos & make your own judgement.
Approx. 34cm x 34cm, 15cm deep.
It looks like something has spilled inside, maybe paint or correction fluid? It's very smooth inside, doesn't feel like it's there. I haven't attempted to clean in.