Brooklyn Bridge Drawing no. 2031, Balance Derrick ca. 1870

Among the Archives' more than 10,000 drawing plans for the Brooklyn Bridge, this drawing details the construction of a derrick used for lifting materials during the construction of the towers. The drawing reflects the remarkable detail and artistry that went into each drawing plan for the bridge. Conservation treatment would help to reduce staining from adhesive damage and remove some of the discoloration and degradation products from the paper, making the paper more stable, safer to handle, and bringing the drawing closer to its original appearance.

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