Fig. 20

Unusual green–brown colors containing copper and zinc (shell brass). a Floral border with green–brown background (f. 120r). b Detail of Fig. 20a (see arrow upper right) showing abrasion of the shell brass revealing a green tone and a moth painted with shell silver (now tarnished), ×25 (f. 120r). c Detail of  moth on f. 13r painted with green–brown shell brass, ×17 (see Table 6 and Fig. 3b, spots 12–14; compare Fig. 21)