Fig. 3From: The practice of writing inside an Egyptian monastic settlement: preliminary material characterisation of the inks used on Coptic manuscripts from the Monastery of Apa Apollo at BawitP.Monts.Roca 636. Top left: the white frames highlight the three regions investigated (R1, R2 and R3). Top right: visible and NIR micro-photographs (magnification: ×50) of R1. Bottom right: XRF spectra of inked and non-inked spots from R1. Bottom right: XRF raw net peak areas of Fe measured on inked and non-inked spots in R1, R2 and R3Back to article page