Watch List notes:

The Roman Empire

Severus Alexander, 222 – 235. Quinarius 224, AV 3.45 g. IMP C M AVR SEV ALEXAND AVG Laureate and draped bust l. Rev. P M TR P III – COS P P Pax standing facing, head l., holding branch in r. hand and sceptre in l. C 253. BMC 166. RIC 39. King 18.
Extremely rare and in exceptional condition for the issue. An unusual and interesting
left portrait struck on a very broad flan, obverse from a slightly
rusty die, otherwise extremely fine
Ex Roma Numismatics sale 3, 2012, 515. From the collection of a retired banker.