This is a poster promoting a strike organized by the Chinese National Laborers’ Union.
English Translation
Top: The National Laborers’ Union Canton-Hong Kong Strike Committee
Top Center: Strike Poster
Top Right: 6th Issue
Top Left: Published and Distributed by Propaganda Department Pictorial Section August 22, 1925
Above giants: Imperialism will not able to oppress us when the weak and small nations unite together
Giant figures (R-L): Africa, India, China
Small figures: Imperialism
Simplified Transcription
顶端：中华全国总工会省港罢工委员会 罢工画报 第六期 宣传部画报股印行十四年八月二十二日
图上方：弱小民族联合起来帝国主义者就无法压迫我们了
巨人从右至左：非洲 印度 中国
小人：帝国主义