Large antique mahogany chromotrope animation magic lantern slide size approx. 164 mm by 120 mm (6 1/2" by 4") manufactured circa 1870 - to 1890. This is a large, mahogany, brass and glass slide with the images hand-painted on the glass. 

This slide features a fishtank with a carosel of various fish swimming past.

Like all mechanical (rackwork) chromotrope slides, the projected slide is animated by the projectionist or assistant turning the handle and rotating a moveable hand-painted circular glass pane in front of a fixed pane that projects animated effects in this case the fish.