The article deals with the structure of a Georgian Manuscript preserved in the funds of the Apostolic Vatican Library under the name of Vat. Iberico I. The monument is not dated and according to its paleographic features must have been compiled in the middle of the 11th century. It belongs to Pietro della Valle's (1586-1652) collection of oriental manuscripts and has been kept in Vatican Library since 1718.
The manuscript in question is a collection of a complex structure consisting of Gospels by Saints Mathew, Mark, Luke and John, edited by Giorgi Mtatsmindeli; it is supplemented by a liturgical part and a patristic fragment about the gospel, the will by the manuscript keepers and other wills and notes.
The article describes the structure of the compositions in the manuscript, the physical condition and the sequence of groupings, the number of chapters, verses and lines, the rules of pagination and numbering of notes and the liturgical notes on the text are studied. The wills and notes made on different pages of the manuscript are analyzed.
The article shows that the research of the manuscript text is very important for studying both the process of establishing Georgian editions and the stages of development of the Georgian literary language, as well as for filling some gaps in the history of Georgia.