Fragments of an applied brooch found among the tiles of the collapsed roof of the Roman bath building in Lower Thames Street, London, were exhibited to the Society in March 1969, and they again raised the question of the date of this type of brooch. The applied saucer brooch in Anglo-Saxon England has often been discussed in connection with the cast saucer brooch, and as the two types are very similar in appearance, it would be as well at the outset to remind ourselves of their several distinguishing features. The Anglo-Saxon applied brooch consists of a disc or back plate of metal, usually bronze and concave, but sometimes flat; the spring lug and pin catch at the back are often separate pieces of metal fixed through slots in the disc, and the pin is of iron or occasionally bronze. On top of the back plate is fastened, by means of some adhesive material, a disc of thin, gilt, bronze sheet, decorated with a repoussé design. There was sometimes an intervening packing of perishable material no longer traceable. A circular band of bronze is fastened on the edge at an angle to the disc to form a rim. When found, the rim and decorative plate have usually become detached, and have often been lost altogether. It is not surprising, therefore, that an alternative method was adopted to make a more durable construction in one piece; the base plate with spring lug and pin catch, together with the decorative surface and rim, were all cast in one piece, so forming the saucer brooch. This was a development of the applied brooch, but the two types continued in use at the same time, and as one design often occurs on both types, they are usually considered together. As there are very few saucer brooches on the Continent, however, possibly contemporary specimens are mainly excluded from the present review, nor will any attention be paid to the larger applied brooches found almost exclusively in this country, many of which are ornamented with animals in Style I and belong mainly to the sixth century.