Recent re-examination of the pottery in the Gloucester Roman pottery type series has identified an unusual large flanged dish in a micaceous fabric from the tilery site at St Oswald's Priory, originally published in Britannia. Petrological analysis indicates that it is of Italian origin. There are currently only a handful of examples of this type known from outside Italy, and this is the first example securely identified from Britain. Supplementary Material, including a high-resolution image of the microphotograph of Gloucester TF214, is available online at https://doi.org/10.1017/S0068113X19000126.