(57) The invention relates to an information medium paper, such as newspaper, magazine,
or advertisement paper, provided with a communication medium forming portion for use
in making a communication medium, such as a potcard or a letter, a method of making
such communication medium from such communication medium paper, and a core sheet for
insertion in the interior of a communication medium forming sheet obtained by cutting
the communication medium forming portion from the communication medium paper when
the communication medium sheet is folded at least in two, and a label adapted to be
mounted on the communication medium forming sheet. Any information written in the communication medium forming sheet can be concealed
by folding the sheet double and/or by mounting the labelthereon, whereby he information
can be kept in secrecy-maintained condition and the need of an envelope is eliminated.
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