Rabab; Algerian; 19th century; Algeria; Algerian; Wood; brass; mother-of-pearl; gut; leather; bone; 23 1/4 x 4 5/16 x 2 3/4 in. (59 x 11 x 7 cm); Width (Of lower bout): 4 5/16 in. (11 cm); Width (Of waist): 3 9/16 in. (9 cm); Width (Of fingerboard): 4 5/16 in. (11 cm); Length (Of upper section): 12 13/16 in. (32.5 cm); Width (Of upper section at nut): 1 3/8 in. (3.5 cm); Body depth at lower section: 2 3/4 in. (7 cm); Body depth at upper section: 2 3/8 in. (6 cm); Chordophone-Lute-bowed-unfretted