Hold on to the three-in-one combination, achieve new victories

坚持三结合, 夺取新胜利
Jianchi sanjiehe, duoqu xin shengli
Hold on to the three-in-one combination, achieve new victories
1968
Shang gong si bayi geming weiyuanhui / Shanggongsi August 1st Revolutionary Committee (上工司八一革命委员会)
53x77.5 cm.
BG E12/607

The worker holds a chop with the character 印 - as used to stamp on documents to make them 'official'.