I rarely purchase from Ebay anymore but I couldn't resist when I stumbled across this coin while scrolling thru my saved sellers list. I immediately noticed something odd about the coin in that the field around the reverse portrait was recessed. After rotating the reverse image it confirmed my suspicion. This was a clashed die. For some reason Severus Alexander coins seem to have a higher quantity of clashed dies compared to other emperors. Severus Alexander RIC IVii 178 (c) Rome 222-228 AD AR Denarius Obverse: IMP C M AVR SEV ALEXAND AVG, Bust of Severus Alexander, laureate, draped, right Reverse: traces of obverse die clash (incuse) struck over with SALVS PVBLICA, Salus, draped, seated left, feeding snake twined round altar out of patera in right hand