I was walking down Zacateros in San Miguel, looked to the right, and then saw just what I'd been wanting, a leather bag big enough for my Fuji and a second lens, and not much more. So I bought it from this fellow, who is also the maker and proprietor of Artesanias Bufalo. He kindly agreed to let me take his picture.
Artesanias Bufalo, bolsas y cinturones todo en fina piel, Zacateros No. 23-B.