Piano Sonatas Hob. XVI:6, 20 & 48
You can see also:
Haydn: Sonatas in E flat, Hob. XVI, 49 (Stein fortepiano) & 52 (Walter fortepiano) – Joseph Haydn 
3 Piano Sonatas Hob. XVI: 32, 34, & 42 / Fantasia / Adagio – Joseph Haydn Klaviersonaten Hob. XVI/35-39 & 20 [vol. 2] – Joseph Haydn Organ Concertos Hob. 18: 1& 2 / Harpsichord Concerto Hob. 18:1 – Joseph Haydn