In clearing out my study today, an annual ordeal, I came across a curiosity, which I am not even sure I acknowledged when it arrived.   Ever since I first met Anthony Caro in the mid-1990s, I have been intrigued that he told me that when he was an undergraduate reading Mechanical Sciences (ie engineering) at Christ’s College, Cambridge, he had done a bust of the then Master, my grandfather Charles Raven.   It was Caro’s first – unrecorded – experiment in sculpture.   I have often wondered what became of it, as did Caro.   No-one, including the College, knew.   Then out of the blue came a letter from one of Caro’s college contemporaries containing a misty, but perfectly identifiable, photograph of the undeniably noble, quasi-Roman bust with Caro himself gingerly holding the backcloth behind it.   This at least makes it possible to document the bust, and might make it easier to locate it:-