Dantis Alagherii de Vulgari Eloquentia:

Gebennae: In aedibvs Leonis S. Olschki, 1920. First edition (presumed; no earlier dates stated). Small light brown octavo; 88 p; 20 cm. Extremely faint wear to spine foot & head, few small tears to edges, top-front corner missing, some underlines and notes to few select pages, else good+ to very good. Paperback.

In Latin. Uncommon Italian language -- Early works to 1800.