I put these days on the subject, and could not miss here. The image of the door he found, floating in the ocean of Google, the last few months Tabernero. A door drawn by Emile Louis Vernier in the second half of the nineteenth century, during a trip to Spain where he left many works that describe several southern cities (but not only) country.
The identification of the door is now unfinished, although you may still have escaped us some details that may help us to achieve.
The author, born in Lons-le-Saulnier, French town near Switzerland 1829, and died in Paris in 1887, was a specialist in lithography until consecrated, late, to paint scenes of fishing and coastal.
The picture belongs to the Louvre Museum, which can be seen here complete (in French)