Metal, "renaissance" style dagger and sheath from the 1991 film Robin Hood Prince of Thieves. The dagger is all metal, with a metal pommel and wrapped wire handle. The leather sheath is slightly too small for the dagger but is the one issued for filming.
Originally supplied by Bapty, the dagger saw use in a number of earlier productions, noteably Robin of Sherwood. Pictured, Jason Connery with a version. And used in a cut scene from Ep.1 The Sorcerer.