Arthur Hamilton Smith, 1911 Encyclopædia Britannica, Volume 4… (1911)
“ In the tombs of the Frankish and kindred Teutonic tribes between the 5th and 9th centuries the crossbar of the T becomes a yet more elaborately decorated semicircle, often surrounded by radial knobs and a chased surface. The base of the shaft is flattened out, and is no less ornate (fig. 13) . At the beginning of this period the fibula of King Childeric (A.D. 481) has a singularly complicated pin-fastening. So far we have traced the history of the safety-pin form of brooch. ”
