Fig. 1

Proscope digital camera image of sherd with area of interest outlined by black carbon tape and copper tape. Tabs of carbon tape (arrows) added to locate area of sample. The green dotted lines denote the area of the sherd shown in Figs. 2 and 6. The yellow dashed lines denote the area of the sherd shown in Figs. 3, 4 and 5. The blue solid lines denote the area of the sherd shown in Fig. 7. Scale 5 mm