The subject is after a painting by Johann Wenzel Peter (1745-1829) now in the Vatican Museums.
Literature:
Jeanette Hanisee Gabriel "Micromosaics, Private Collections", pages 140 et 141, Plaques similaires de Gioacchino Barberi (1772-1857) au sujet identique "Hen and Chicks" et "Rooster, Hen and Chicks". (Nos. 101 et 102).
Micromosaic scene: 13cm high, 15cm wide
Black marble tabletop: 39cm diameter
Wooden border tabletop: 49cm diameter