Simonetta, B. & Riva, R. Le tessere erotiche romane (spintrae), quando ed a che scopo sono state coniate. Lugano, 1981. 8vo., pp. 35; 7 plates. Inscribed by the author on the first free endpaper with traces of a bookplate on the front pastedown. Original printed boards, little used and almost fine overall. Scarce.