The Public Domain Review website is, as their website states, “dedicated to the exploration of curious and compelling works from the history of art, literature, and ideas – focusing on works now fallen into the public domain, the vast commons of out-of-copyright material that everyone is free to enjoy, share, and build upon without restrictions.” None were shot on iPhones, but they displayed as pixels on exhibition.
I love the site. They recently posted a couple hundred public domain vintage nude photographs, drawings, and sculptures. Here are some of my favorites.
You can peruse the whole gallery here. Used under Creative Commons 0 license.