Bos (2008) Type 2.3.2.1 = rosette brooch with central glass enamel and six-petaled flower with pits/openings restored
Literature:
Definition des Fibeltyps:
J. M. Bos, Medieval brooches from the Dutch province of Friesland (Frisia). A regional perspective on the Wijnaldum brooches. Part II: Disc brooches. Palaeohistoria 49/50, 2007/2008, 709–793.