Boys playing music, illustration of Psalm 150 (<i>Laudate Dominum</i>). Panel decorating the <i>cantoria</i> (singers' gallery), actually a balcony for the 1438' organ of the Duomo. Museo dell'Opera del Duomo, Florence, Italy. Marble.
Luca della Robbia (Italian, 1400–1482)
circa 1438 <div style="display: none;">date QS:P,+1438-00-00T00:00:00Z/9,P1480,Q5727902</div>
<a href="//commons.wikimedia.org/wiki/User:Jastrow" title="User:Jastrow">Jastrow</a>, own picture