I’ve just added this image and caption to the Trombone History Timeline, 18th century. It’s particularly interesting because it’s a little late for trombone angels, especially in Italy.

c. 1775—Bassano del Grappa, Italy: A ceiling fresco by Giovanni D’Antona in the Chiesa di San Sebastiano al Cappuccini features an angel trombonist playing from a balcony. D’Antona, a student of Girolamo Turro, was active in the second half of the 18^th century and was from nearby Feltre (see detail and full image below; public domain).