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Tapping rubber tree. Plantation worker tapping a rubber tree using a machete, the traditional way of obtaining the sap of the tree. The cuts made in a rubber tree (Hevea brasiliensis) releases its milky sap (latex). The sap is collected and used to make natural rubber. This photograph, dating from around the period between 1915 and 1920, is from the Bain News Service, one of the USA's earliest news picture libraries.
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