||Piano Quintet, Op.39
||Quintett für Pianoforte, 2 Violinen, Viola und Violoncell, Op.39
||Piano, 2 Violins, Viola and Cello
Somehow and oddly Kaun opus 39 appears in HMB 1893 page 319 as "erstes quintett" for 2 violins, viola and 2 cellos- before either the opus 28 string quintet or the opus 39 piano quintet was published. ?!
(Given the key I'm guessing this was a typo for opus 28.)