Reading this discussion: https://www.cointalk.com/threads/proculus-the-controversial-emperor.333696/#post-3377720 I read also something about the usurper Bonosus... According to Estiot, no coins of Bonosus exist. They are all local issues imitating Postumus, the wrong attribution is due to De Witte (1859). But during the years some coins was sold like Bonosus pieces: Hess Auction n. 41, 1969 (sold for 14.000 chf ) The majority of these type of coins came from the Malicorne hoard (see 1966, J. B. Giard http://www.persee.fr/doc/numi_0484-8942_1966_num_6_8_1114). Estiot studied the dies of all the known type and she summarized the results in this table: After the Estiot paper, 2014, (https://www.academia.edu/1378031/Pr...cules_Proculus_et_Bonosus_que_dit_la_monnaie_) only two others specimens related with this serie appeared: LEU web auction 1/2017 And this piece (now in my collection) that I found in a small lot of gallic coins: The Leu piece has a new type of reverse (ORIENS AVG), mine has tand of the two ex. n. 51-52 from Maliconrne hoard (see fig. 11-12-13 Estiot table). A great group of "barbarous radiates" with an interesting and fascinating numismatic history