Some of the confronted busts types look more confrontational than others. Here is Julia Mamaea scowling at her son Severus Alexander... MOESIA INFERIOR, Marcianopolis. Severus Alexander, with Julia Mamaea. AD 222-235. Æ Pentassarion, 29mm, 15.5g, 6h. Obv.: Laureate, draped, and cuirassed bust of Severus Alexander and draped bust of Julia Mamaea, wearing stephane, facing one another. Rev.: Nemesis standing left, holding scales and cornucopia; wheel to left, E (mark of value) to right. Reference: Varbanov 1834; Pfeiffer 624.
Ah, @John Anthony, that reminds me. I do have one other Severus Alexander Severus Alexander and Julia Maesa 222-235 AD AE28 Markianopolis, Moesia Inferior Obverse: AVT K M AVΡ CEVH AΛEΞANΔΡOC IOVLIA MAICA, laureate, draped bust of Severus Alexander right, facing draped bust of Julia Maesa left Reverse: (YΠ TIB) IOYΛ ΦHCTOY MAΡKIANOΠOΛEITΩN, Dikaiosyne standing left, holding scales and cornucopiae; E in right field Reference: Varbanov 1866 Very similar to yours. I thought I had my attribution wrong after reading yours.
It's difficult to tell exactly which AMNG number is the right one for the Elagabalus/Julia Maesa I bought, but I'm pretty sure it's 944 -- i.e., the obverse of 940, the reverse inscription of 944, and the reverse design of 941: