XRF (Bruker M6 JetStream: 50kV, 600 µA, maps with 200 µm steps and 25-30 ms per pixel) and reflectography (DinoLite AD4113T-I2V: x40 magnification, vis, NIR ~940 nm and UV ~395 nm light) analysis of inks from P. graec. 33 and 34 from the Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky.
P. graec. 34 (P. Hamb. I 1, Tm 21035) is a papyrus with a bank transfer certificate written in Greek in Alexandria in 57 CE. No elements were detected in the ink with XRF. The NIR images suggest the inks contain carbon. We are therefore dealing with pure carbon ink.
P. graec. 33 (P. Hamb. I 10, Tm 28691) is a papyrus with a petition to the dedarch for robbery attack, together with a list of stolen objects, written in Greek. It was written in Theadelphia (Fayum) and is unfortunately not dated (most probable date is 2nd century CE). Since it is kept in the same glass as P. graec. 34 it was analysed following P. graec. 34.
P. graec. 33-34_XRF_Protocol.pptx - XRF protocol for P. graec. 33 and 34
P. graec. 33_Reflectography.zip - complete reflectography dataset for P. graec. 33
P. graec. 33_Reflectography_Protocol.jpg - reflectography protocol for P. graec. 33
P. graec. 33_XRF.zip - complete XRF dataset for P. graec. 33
P. graec. 34_Reflectography.zip - complete reflectography dataset for P. graec. 34
P. graec. 34_Reflectography_Protocol.jpg - reflectography protocol for P. graec. 34
P. graec. 34_XRF.zip - omplete XRF dataset for P. graec. 34
