c. 1650—Italy

Swiss-born artist Pier Francesco Mola includes a trombone at the foot of his painting, Young Musician Playing a Viola da Gamba. Although it is impossible determine with certainty, the instrument may be an alto trombone, given its size relative to the nearby instruments and music pages, in addition to its proportion relative to the musician (see detail and full image below; public domain) (Mola 161).