Fig. 21

XRF spectra of green–brown colors (shell brass). a Detail and spectrum (in blue) of dark green–brown background in unattributed full border (f. 72v). Note, this spectrum is also characteristic of the color found on f. 120r (compare to Fig. 20a, b). b Detail and spectrum (in red) of light olive-green background with shell gold in unattributed full border (f. 101r)