Vtre (m)
(with) definite article: il: l’air reservoir: flexible (usually of animal skin), ready for the insertion of stocks
Mentioned in Scarabelli, whose book is the Italian version of Paulo Maria Terzago’s »Mvsevm septalianvm Manfredi Septalæ …« (Dertonæ [Tortona], 1664).
Scarabelli, Pietro Francesco: Mvseo ò galeria adunata dal ʃapere, e dallo ʃtudio del Sig. Canonico Manfredo Settala, nobile milanese, descritto in Latino dal sig. Paolo Maria Terzago et hora in Italiano… Tortona, MDCLXVI [1666], p.364.