Just added the below entry and image to the Trombone History Timeline (17th century, 2nd half). I will probably also add it to the HubPages article, Angel-Trombonists Throughout History. I’ve also included the larger view on this post, not just the detail view shown in the Timeline.

1652-55—Preonzo, Switzerland: A fresco in the ceiling of Chiesa Santi Simone e Giuda features a number of angel-musicians, including a trombonist (see below detail; public domain image; click on image to expand).