Perspective box made of black lacquered wood with three painted glass plates: ice picture with spring house and windmill, skaters, perspective case glass plate glass wood oak wood brass, handpainted Perspective cupboard made of black lacquered oak (circa 1875-1900). Metal wackets on both sides; on one side brass knob to pull the box out of the storage chest. In the closet at equal distances from each other three painted glass plates (circa 1775-1810): foreground center and background giving rise to three-dimensional effect optics perspective winter skating small ice age ice fun glass painting diafanorama