Interesting post card issued sometime around early 1930.
From the top down
1920 Japan National Census Taker’s Badge https://asiamedals.info/threads/1920-japan-national-census-takers-badge.24447/
1923 Great Kanto Earthquake Evacuees Census Taker's Badge...
1920 japan national census taker’s badge
1925 japan national census taker’s badge
japanesecensus badge
japanesecensusbadgespostcardwithjapanesecensusbadges