Accession number: jrc00024. China: A Moment in time - Chinese Political Posters and Recollections number: 90. Claremont Colleges Digital Library object file name: tcp00149. Claremont Colleges Digital Library URL: https://ccdl.claremont.edu/digital/collection/tcp/id/192.

An educational picture from the Chinese language textbook in primary schools, leading pupils to learn agricultural science and technology. They learned what were the good friends of crops and what were the bad ones.