Fig. 1

Visible and NIR micro-photographs (magnification: ×50) of an inked spot on P.PalauRib. Inv. 41 (top) and Inv. 360 (bottom)
Visible and NIR micro-photographs (magnification: ×50) of an inked spot on P.PalauRib. Inv. 41 (top) and Inv. 360 (bottom)