Autor: Unknown photographer
Título: Thomas Edison (1847–1931) with his invented white light bulbs from 1883.
Data: Taken in from 1918 until 1919
Origem: https://www.archives.gov/exhibits/american_originals_iv/images/thomas_edison/thomas_edison.html
Fonte: https://commons.wikimedia.org/wiki/File:Thomas_edison_gl%C3%BChbirne.jpg
Licença: Domínio Público