Galerius, AE Follis, 305-306 AD, Cyzicus Mint (4th Officina). Obv. Laureate head right, IMP C GAL VAL MAXIMIANVS P F AVG/ Rev. Genius, wearing modius, nude, chlamys draped over left shoulder, standing left, holding cornucopiae in left hand and pouring libation from patera in right hand, GENIO POPV-LI ROMANI; K Δ [K = Cyzicus, Delta = 4th Officina] in exergue. RIC VI Cyzicus 21b & 25a (pp. 582, 584), Sear RCV IV 14546, Cohen 81. 27.8 mm., 9.65 g. 12 h. Ex. Dattari Collection; Ex. Jesus Vico. Galeria Valeria (wife of Galerius and daughter of Diocletian). AE Follis, 308-310 AD, Cyzicus Mint (4th Officina). Obv. Diademed and draped bust right, GAL VAL-ERIA AVG / Rev. Venus standing facing, head left, right hand holding up apple, left hand raising drapery over left shoulder, VENERI V-ICTRICI; Δ [Delta = 4th Officina] in left field; MKV [Cyzicus] in exergue. RIC VI Cyzicus 46 (p. 586), Sear RCV IV 14597. 24x26 mm., 5.7 g. Regarding the provenance of the first coin: after having read the thread about Giovanni Dattari (1853-1923) and his coins that @Ocatarinetabellatchitchix started a couple of months ago (see https://www.cointalk.com/threads/the-dattaris-mystery.357304/), I was, naturally, very intrigued by the Dattari provenance of the Galerius coin. Especially because I remembered reading in that thread that Jesus Vico sold a number of Dattari's Roman Imperial coins a few years ago. And especially because I was actually able to find Vico's listing of my coin, from 2017: It's pretty exciting (at least for me!) to own a coin whose provenance must go back before Dattari's death in 1923. But here's my question: given that Dattari's Roman Imperial coins were never catalogued, does any know how Jesus Vico knew that the Dattari coins he sold a few years ago were from Dattari's collection? Did he buy them from the family?