Summer
Giuseppe Bartolomeo Chiari (attribuito) XVIII sec. d.C.The two small paintings on copper dating from the 17th century were originally part of two nocturnal clock exhibits, as is clearly visible from the arched window at the top, which was later filled in.
The night clock had a different mechanism and dial from the traditional ones: the hours, set on three rotating discs, ran in the opening at the top by about 180° and were made visible by a lamp placed inside the case.