Added the caption and images below to the Trombone History Timeline (17th century, 2nd half) and the Interactive Map of European Trombone Iconography.

1690—Lambach, Austria: A regal, originating circa 1580 from Lambach Abbey, includes a case dated 1690. The case features depictions of various figures, probably muses, playing musical instruments, including trombone (see detail and full image below; special thanks to Kellyn Haley) (Vienna, Kunsthistorisches Historical Musical Instruments Museum, SAM 636).