PURPOSE: To provide picture finding goods to enable a user to easily enjoy later what are the invisible images concealed at the time of purchase in a mode of finding fossils, etc.
CONSTITUTION: These picture-finding goods are formed into a two-layered structure formed by bringing a second layer B consisting of hardly cuttable gypsum into tight contact with the front surface of a first layer A consisting of a hardly cuttable cement layer to conceal the relief (a) (image) on the front surface in such a manner that the relief (a) is found out when the second layer B is cut off. To enjoy by using such picture finding goods 10, the user removes the second layer B with a chisel, etc., and enjoys the mode of finding out what relief (a) appears on the front surface of the first layer A.
JPS587677B2 | 1983-02-10 |