![](http://www.alamy.com/thumbs/6/16D0A7E7-5C7B-47BC-82A9-0073FCAC0F79/BBNMMA.jpg)
energy, light bulbs, close up, Germany, circa 1934,
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Keywords: 1930s, 20th, 30s, bulb, bulbs, century, close, company, electricity, energy, germany, historic, historical, lamp, lamps, langbein, light