Résumé :
Abstract The multispectral imaging of the sample from BAV, Vat. gr. 73 in 2016 resulted in the discovery of important texts by Dexippus and Polybius. Imaging with a then state-of-technology integrated multispectral imaging system helped reveal texts in the manuscript that were no longer visible to the unaided eye due to interventions by earlier librarians. The resulting images were processed with several techniques that produced remarkable results for researchers. Collaboration between the scientific team, the BAV staff and other investigators provided new information and large amounts of data for further research.