| 摘要 |
PROBLEM TO BE SOLVED: To provide a postcard with a puzzle equipped with a concealed message transmission means regarding a postcard with a jigsaw puzzle. SOLUTION: The postcard with a puzzle comprises a substrate 11, a frame board 12 attached to the back of the substrate 11, and a plurality of fitting board pieces 4 which make a specified complete photograph or picture when insetted inside the frame board 12 in a mutual positional relationship as specified. The opposite side to a frame board attaching face of the substrate 11 serves as an address entry column, in which a second message entry column 18 is preferably provided. The inside of a frame for the frame board attaching face of the substrate 11 serves as a message entry column 13, which is concealed by the fitting board pieces 4 when the pieces 4 are insetted in the specified mutual positional relationship.
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