Some years ago the late Colonel Seton Gruthrie showed me some coins of a totally different appearance to any I had before seen. They did not, I think, form part of his collection, but belonged to a friend who had received them from a relation in the Yemen. Colonel Guthrie, however, allowed me to take impressions of them, with a view to deciphering and publishing the inscriptions at some later time when I had more leisure to devote to their inspection.