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 https://asiamedals.info/threads/1923-great-kanto-earthquake-evacuees-census-takers-badge-1923.24168/
1925 National Census badge https://asiamedals.info/threads/1925-japan-national-census-takers-badge.29612/
1930 Japan National Census badge https://asiamedals.info/threads/1930-japan-national-census-takers-badge.28164/
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 https://asiamedals.info/threads/1923-great-kanto-earthquake-evacuees-census-takers-badge-1923.24168/
1925 National Census badge https://asiamedals.info/threads/1925-japan-national-census-takers-badge.29612/
1930 Japan National Census badge https://asiamedals.info/threads/1930-japan-national-census-takers-badge.28164/