Historical name Description A knife to used to impress. See folio 5 recto in the Mayerne Manuscript for a drawing of a cousteau. Records Library / Place of Edition Title Source title Year British Library [Mayerne Manuscript Ms.Sloane 2052, f.5] [Mayerne Manuscript Ms.Sloane 2052] British Library [Mayerne Manuscript Ms.Sloane 2052, f.9] [Mayerne Manuscript Ms.Sloane 2052] British Library [Mayerne Manuscript Ms Sloane 2052, f.11] [Mayerne Manuscript Ms. Sloane 2052]