Watch List notes:

The Roman Empire

Commodus, sole reign 180 – 192. Aureus 187-188, AV 7.20 g. M COMM ANT P – FEL AVG BRIT Laureate and draped bust r. Rev. P M TR P XIII IMP VIII COS V P P Salus seated l., feeding snake coiled round altar; in exergue, SAL AVG. C –. BMC p. 735 note *. RIC –. Calicó 2322 (this reverse die).
Extremely rare. A very interesting reverse composition, an absolutely insignificant mark on
obverse field and edge and reverse from a slightly rusty die, otherwise extremely fine

Provenance
Sold by Triton, New York, auction XIII, 5-6 January 2010, lot 323.