Detecting Atlas — Roman portrait comparison image credits
Updated: 2026-08-28

This notice applies to the image files in this directory, not to the Detecting Atlas website as a whole. The local WebP files are resized and, where noted, cropped derivatives of the sources below. Each derivative remains available under the source image's stated license.

hadrian-bare.webp
Source: https://commons.wikimedia.org/wiki/File:Hadrian,_denarius,_134-138_AD_(obverse).jpg
Credit: Classical Numismatic Group, Inc., via Wikimedia Commons
License: CC BY-SA 2.5 — https://creativecommons.org/licenses/by-sa/2.5/
Changes: Source file was already cropped on Wikimedia Commons; resized and converted to WebP.

trajan-laureate.webp
Source: https://commons.wikimedia.org/wiki/File:Trajan_Denarius,_Roman_Dacia,_107_AD_-_Obverse.jpg
Credit: James Grout / Encyclopaedia Romana, via Wikimedia Commons
License: CC BY-SA 3.0 — https://creativecommons.org/licenses/by-sa/3.0/
Changes: Cropped, resized, and converted to WebP.

postumus-radiate.webp
Source: https://commons.wikimedia.org/wiki/File:Antoninianus_of_Postumus_-_Obverse.jpg
Credit: MumblerJamie, via Wikimedia Commons
License: CC BY-SA 2.0 — https://creativecommons.org/licenses/by-sa/2.0/
Changes: Cropped, resized, and converted to WebP.

valentinian-pearl-diadem.webp
Source: https://commons.wikimedia.org/wiki/File:Solidus_of_Valentinian_II_(YORYM_1998_853)_obverse.jpg
Credit: York Museums Trust Staff / York Museums Trust (Yorkshire Museum), via Wikimedia Commons
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Cropped, resized, and converted to WebP.

constantinople-helmet.webp
Source: https://commons.wikimedia.org/wiki/File:Roman_Coin_-_Constantinople_Commemorative_(FindID_836702).jpg
Credit: The Portable Antiquities Scheme / Rod Trevaskus, via Wikimedia Commons
License: CC BY 2.0 — https://creativecommons.org/licenses/by/2.0/
Changes: Obverse cropped from a photograph containing both faces and a scale; resized and converted to WebP.

licinius-two-portraits.webp
Source: https://commons.wikimedia.org/wiki/File:Licinius_gold_multiple_CdM_Beistegui_232.jpg
Credit: Photo by Marie-Lan Nguyen; object from Musée de la BnF, Beistegui 232, via Wikimedia Commons
Rights statement: Public Domain Mark 1.0 — https://creativecommons.org/publicdomain/mark/1.0/
Changes: Cropped, resized, and converted to WebP.

illegible-worn.webp
Source: https://commons.wikimedia.org/wiki/File:Illegible_Roman_coin_obverse_(FindID_65830).jpg
Credit: Colchester Museums / Caroline McDonald; The Portable Antiquities Scheme / The Trustees of the British Museum, via Wikimedia Commons
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Changes: Cropped to remove the photographic scale, resized, and converted to WebP.