<a href="https://en.wikipedia.org/wiki/Arch_of_Constantine" class="extiw" title="w:Arch of Constantine">Arch of Constantine</a>, Rome
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Unknown author<span style="display: none;">Unknown author</span></div>
between 1840 and 1870 <div style="display: none;">date QS:P571,+1850-00-00T00:00:00Z/7,P1319,+1840-00-00T00:00:00Z/9,P1326,+1870-00-00T00:00:00Z/9</div>
<i>Con la luce di Roma. In Rome's Light. Fotografie dal 1840 al 1870 nella Collezione Marco Antonetto</i>, catalogue, 255 pages, bilingual Italian and English, edited by Gianna Antonia Mina and Museo Vela, <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-3-9524508-1-9" title="Special:BookSources/978-3-9524508-1-9">ISBN 978-3-9524508-1-9</a> or 5 Continents Editions, Milan, <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-88-7439-738-9" title="Special:BookSources/978-88-7439-738-9">ISBN 978-88-7439-738-9</a>; copy from <a rel="nofollow" class="external text" href="http://www.faz.net/aktuell/fruehe-fotografie-scharf-wie-140-gigapixel-14199180.html">Frühe Fotografie: Scharf wie 140 Gigapixel</a>