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Each St. Patrick's Day the Chicago River is dyed green. The tradition started by accident when plumbers used green dye to trace sources of illegal pollution dumping. Size: 4"x6" Paper: 110lb cardstock with a smooth matte finish Finish: Matte finish for a classic look and easy writing surface Back: Includes fascinating facts about the postcard scene --- CHGO-199 | © Christopher Arndt Images. This derivative work is based on an original photograph by Natasha Jelezkina and used under Creative Commons license (CC BY-SA 2.0).
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🇺🇸 Ship from USA · On Agora since 2025
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