3 Violin Duos, Op. 99, by Franz Joseph Haydn. Suitable for intermediate violinists. 

15 Studies Op. 68 for 2 Violas (Instrumental Duet)

Charles Dancla, Fritz Brauer, Carl Herrmann

£14.95

12 Easy Duets for Two Violins, Op. 10 (Instrumental Duet)

Michel Gebauer, Carl Herrmann

£18.50

12 Easy Short Duets, Op. 87 (Instrumental Duet)

Charles-August de Beriot

£17.95

6 Duos, Op. 14 (Instrumental Duet)

Bartolommeo Campagnoli, Friedrich Hermann

£19.95