2nd type badge was introduced in September 1941.
1st variation "Screw fastening".
Made in light aluminium alloy. Paint instead of enamel. Badges with hot enamel are also known.
Original case.
大日本産業 - Greater Japan Industrial
報國會徽章 - Patriotic Service Association Badge
Inside inlay
徽章...
dainippon sangyō hokokukai
dainippon sangyō hokokukai badge
greater japan industrial patriotic association
industrial patriotic association badge
industrial patriotic association member badge
movement of industrial service to the country
naigai medal works
会員徽章
内外徽章製作所
大日本産業報国会バッジ
大日本産業報国会会員徽章
大日本産業報国会徽章
大日本産業報国会章
Established on April 13, 1935. Badge was worn on the left chest as an enumerator ID badge. Surveyors were allowed to keep the badge after the end of survey.
Taiwan version of the badge https://asiamedals.info/threads/government-general-of-taiwan-census-takers-badges.24400/#post-364647
Size 24...
1935 japan census badge
1935 japan census taker’s badge
1935年国势调査徽章
1935年國勢調査徽章
japanese badge
japanese census badge
naigai medal works
内外徽章製作所
昭和10年國勢調査徽章
昭和十年国势调査调査员徽章
昭和十年國勢調査徽章
badge made by naigai medal works
badge made by naigai workshop
manufacturer of japanese awards
manufacturer of japanese badge
manufacturer of japanese sake cup
manufacturer of japanese watch fob
naigai medal works
naigai workshop
内外徽章製作所内外徽章製作所カタログ
内外徽章製作所トロフィー
内外徽章製作所トロフィーカタログ
内外徽章製作所第拾回国際オリムピック競技大会