Città del Vaticano, Biblioteca Apostolica Vaticana, Borgh. lat. 4

123r-210v, Smaragdus of Saint-Mihiel - Expositio libri comitis

Link to digitization: here.
MAIER 1952, p. 5–9 (“Saec. XII”); BARRÉ 1962, p. 13 n. 46 (“XIIe s.”); RÄDLE 1974, p. 122 (“XIIes.”); HEIL 1998, p. 394; ANHEIM 2011, p. 79–81 (the text is not mentioned). The manuscript is not mentioned by WITTERS 1975.