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The surviving bifolium contains three texts on Latin grammar:
Alcuin, Ars grammatica, De Interjectione (PL 101, Sp. 901-902) ; Servius, De centum metris ad Albinum, De anapaesticis, 11 (end) (Elice, 2013, S. 31) ; Smaragdus, In Partibus Donati, X. De Verbo (MGH Poetae Latini Aevi Carolini I, S. 612-613).
Perhaps it was part of a school textbook.
(David Bosch, Schaffhausen)