Copper-alloy, 8.81 grams, 34.04 mm. 1st-4th century AD. An unusual form of Roman plate brooch in the form of a classical temple such as the Pantheon in Rome, with a domed cupola above a portico comprising four columns, pediment and base. The base is defined with a shallow slot below the columns and a series of notches on the lower edge; the pediment bears a similar slot and within the outer arch of the cupola is a smaller inner arch with circular piercing. Reference: cf. the two brooches found in northern France in Hattatt (1989) nos. 1625A, B which are less regular in execution and have the pins inverted in respect of the present piece. Reference: Hattatt, R. Ancient Brooches and Other Artefacts, Oxford, 1989 p. 165-5. Very fine condition. Provenance: from an old English collection.