同志,我们要坚决做到安全生产 - 安全生产挂图1 Tongzhi, women yao jianjue zuo dao anquan shengchan - anquan shengchan guatu 1 Designer Zhang Yuhai (张玉海) Date 1964, December Publisher Jixie gongye chubanshe (机械工业出版社) Size 77x52 cm. Call nr. BG E15/521 Collection Landsberger collection