Image: 1965-6 1965年 北京灯泡厂 高压水银灯泡
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Description: Production of high-pressure mercury vapor lamps, picture taken in Beijing, 1965
Title: 1965-6 1965年 北京灯泡厂 高压水银灯泡
Credit: 《人民画报》1965年第6期
Author: 《人民画报》
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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