However, due to the worsening condition of the times, an issuance of New Year's postcard stamps stopped in 1938, the special handling was stopped in 1940 and there was an increased demand for voluntary restraint with the outbreak of the Pacific War.
しかし時勢の悪化により1938年に年賀切手の発行が中止、1940年には特別取扱が中止され、太平洋戦争勃発以降はさらに自粛の声が高まった。