File talk:Etienne-Louis Malus.jpg
Latest comment: 5 years ago by Gavin R Putland
According to Old Antique Prints and the Smithsonian Library, this engraving is the work of Ambroise Tardieu, who died in 1841. It should therefore be in the public domain globally, and the latter source specifically declares it to be in the public domain in the USA. — Preceding unsigned comment added by Gavin R Putland (talk • contribs) 08:13, 11 May 2019 (UTC)
