Usually Uniface in San Francisco

RSA 2006. Will it or won't it be drier than a Jacobean saltine? Here's a teaser from the abstract of paper 1, panel 1, day 1: "With an oblique reference to Leone Leoni's medal of Ippolita Gonzaga and the similar piece by Jacopo da Trezzo, the Emilian medallists, whose work is usually uniface and cast in a lead alloy, produced a series of portraits of great originality." Now, I like obscure knowledge as much as the next blogger of the Renaissance, but do we really need that second subordinate clause in there? Usually uniface? Occasionaly biface? Infrequently heptadeciface? I myself will be putting on a happy face, casting myself in a tweed blazer, wandering through two giant hotels, and taking notes for the blog. Also, I will surreptiously place Hieronimo's book in a more advantageous spot on its publisher's table. More to come...