A Romancoin depicting emperor Tetricus (r. 270-273 CE).
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Original image by Rasiel Suarez. Uploaded by Mark Cartwright, published on 11 April 2014 under the following license: Creative Commons: Attribution-ShareAlike. This license lets others remix, tweak, and build upon your work even for commercial reasons, as long as they credit you and license their new creations under the identical terms.