移风易俗 - 改造国家 Yi feng yi su - gaizao guojia Designer An County Health and Epidemic Prevention Station ( 安县卫生防疫站) Date Early 1970s Publisher Epidemic Prevention Station in Mianyang, Sichuan Province / Sichuan sheng Mianyang diqu fangyi zhan (四川省 绵阳地区防疫站) Size 77.5x53 cm. Call nr. PC-197a-010 Collection Private collection Theme Hygiene
