Copyrighted 1947, copyright not renewed. Einstein's estate may still claim copyright on this image, but any such claim would be considered illegitimate by the Library of Congress. No known restrictions.[1]
Gambar ini merupakan gambar bernilai dan dianggap memenuhi kriteria gambar bernilai. Berkas ini merupakan gambar pilihan di Wikipedia bahasa Arab (صور مختارة) dan telah dianggap sebagai salah satu gambar terbaik. Lihat pencalonannya di sini. Berkas ini merupakan gambar pilihan di Wikipedia bahasa Persia (نگارههای برگزیده) dan telah dianggap sebagai salah satu gambar terbaik. Lihat pencalonannya di sini.
Jika Anda merasa berkas ini layak untuk ditampilkan di Wikimedia Commons juga, Anda dapat mengusulkannya.
Jika Anda mempunyai gambar dengan kualitas yang serupa dan dapat diterbitkan di bawah lisensi hak cipta yang sesuai, pastikan Anda menggunggah, menandai, dan mengusulkan gambar tersebut.
The author died in 1968, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 50 years or fewer.
This work is in the public domain because it was published in the United States between 1931 and 1963 and although there may or may not have been a copyright notice, the copyright was not renewed.
If the author of this work has been deceased for under 70 years, this work is protected by copyright in Germany, Austria and Switzerland, unless other regulations apply. Therefore, communities of German-language Wikimedia projects have decided that use of this file is not allowed within German-language Wikimedia projects.