Some time ago, I saw the above picture in a newspaper. I cut it out and eventually stowed it away, I thought in some atlas or other large tome.
Later, when I looked for it I couldn't find it anywhere, so I tried looking online for a copy. It was by R.B.Kitaj, an artist I like, and was called "The Antiquary", or so I thought. Nothing turned up, though I waded through a large section of Kitaj's work. It was a lost masterpiece.

Then recently I was searching for something else and turned up my picture among a pile of stationery. On the back was the name, "The Orientalist". No wonder I couldn't find it online. Armed with the correct title I tried again. Success