The altar here published is in the possession of Mr. G. A. Warren of Streatham Hill, to whom I am very much indebted for permission to make this publication. It belonged formerly to a Mr. Morgan and passed into Mr. Warren's possession in 1892. Mr. Morgan is no longer alive, and enquiries I have made about the origin of his collection have had no result. I have therefore nothing to say about provenance.The altar has the shape which is usually given to such monuments of late Republican and Imperial times, except that there is no moulding above, and the reliefs are not sunk in panels. It dates perhaps from the second century A.D. and seems to be Roman.