The principle of anamorphosis - optical image with enlarged axes object.
The backing plate with a square cylinder placed vertically with a mirror surface (8 - 10 cm diameter). A visitor to the mirror rod attaches "unreadable" distorted images that mirror transforms into "readable". Supplied with solid flat rack with different distorted graphics.
Material: wood, mirror foil
Dimensions (cm): 50 x 60 x 60