The author died in 1942, 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 80 years or fewer.
Jacob Riis. Image source: [http://hdl.loc.gov/loc.pnp/cph.3b05563 Library of Congress, digital ID cph.3b05563]: "No known restrictions on publication". Created 1906; photographer Pirie MacDonald. {{PD-US}}
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