This fragment is to judge by the content (Hieronymus, Expositio) related to the other two fragments pasted on the same cover (http://www.fragmentarium.unifr.ch/overview/F-gsof), it is probably a later, 12th-century addition to the original 9th-century manuscript.(Ivana Dobcheva, ÖNB (Austria))
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Wien, Österreichische Nationalbibliothek, Cod. 1361, Cod1361_VDS – Ps.-Hieronymus: Expositio quatuor evangeliorum