Fig. 3From: A courtly brocade belt belonging to Qajar period (1789–1925), IranSEM-BSE (backscattered electrons) images of red yarn (a, b) and brocade yellow yarn (c, d); The fibers of both yarns represent the ribbon-like form as an index of cotton fibers. Brocade yarn fibers show more degradation, probably due to the corrosive effects of the metal stripBack to article page