Judith with the Head of Holofernes
painted surface: 30.1 x 18.1 cm (11 7/8 x 7 1/8 in.)  overall: 30.8 x 19.7 cm (12 1/8 x 7 3/4 in.)  framed: 45.7 x 32.1 x 7.6 cm (18 x 12 5/8 x 3 in.)

About Andrea Mantegna or Follower (Possibly Giulio Campagnola)