1st-2nd century AD. A terracotta oil lamp with tapering body, disc bearing an actor's mask in low-relief flanked by two filling holes, D-shaped nozzle, deep border to body, two triangular lugs to the shoulders, basal rings with 'FORTIS' at centre, pellet in circle beneath. 98 grams, 10.5cm (4"). Ex property of a deceased gentleman in the 1980s, by descent. The 'Fortis' lamp factory was sited in modern Modena, Italy, and its products were ed up to the end of the 2nd century AD.