FEUDAL FRANCE. Poitu, Alphonse (1241-1271), billon Denier Tournois, 0.8g, 18mm, Obverse; + ALFVNSVS COMES, cross, Reverse; + PICTAVIENSIS, a castle. D'Avant-2538, Roberts-5201, GF
References;
Faustin Poey D’Avant, Monnaies Féodales de France , Graz, 1961.
James N. Roberts, The Silver Coins of Medieval France (476-1610 AD) , South Salem 1996.