拍品专文
The slides show the eclipse of the moon and the movement of planets and moons.
细节
Astronomical slides
each wood-mount 11¼ x 5½ inches, hand-cranked, the subject 4¼ inch diameter (approx) (2)
each wood-mount 11¼ x 5½ inches, hand-cranked, the subject 4¼ inch diameter (approx) (2)
更多详情
See illustration