http://joeb-tallyho.blogspot.com/search/label/Bob%20Dylan%20Mardi%20Gras%201964
That is the famous(now gone) La Casa De Los Marinos. Click on the link above the picture to read all about these two bars.
Click on the picture above to enlarge it. The bar was called The Seven Seas. Siete Mares.
The photo was taken by Eddie Hunter in 1965.