[East Bay]: [1974?]. 1.5 inch diameter pin, bilingual text and artwork depicting seamstresses with a sewing machine, orange background. Very good; manufactured by East Bay pinmaker Robert Rush (though not identified as such on the pin). GCA was the Great Chinese American Sewing Company, known in Cantonese as Jung Sai (Zhong Xi in Mandarin).
Jung Sai's workers, many of whom made only $2 an hour, went on a strike in 1974 that was a formative moment in Chinatown activism.