Glass slide in wooden frame. 2 colored images labeled "The Seasons ... Positions of Saturn's ring". The former shows the sun surrounded by 12 positions of the Earth, each labeled with a zodiacal symbol. The latter shows the Earth surrounded by 8 positions of a ringed planet, to illustrate the changing appearance of the ring. Hand painted.
Inscription/Sig.
The Seasons ... Positions of Saturn's ring ... [illegible]
