Here are a few sold Severus Alexander/Abundantia denarii from CNG archives:
http://cngcoins.com/Search.aspx?PAG..._TYPE_ID_4=1
I've noticed that often these Sev. Alex. (and Gordian III) coins are sold in lots of multiples rather than individuals, perhaps because of their abundance.
And from ebay sold items, as part of a pair:
http://www.ebay.com/itm/G-N-LOT-2x-...em53ffc3f520





















