Postumus, AV aureus, Cologne, 6.20 g. 

POSTVMVS PIVS FELIX AVG, jugate, laureate heads of Postumus 
and Hercules right
FELICITAS AVG, jugate busts of Victory right, holding wreath 
and Pax, holding olive branch. 

RIC 267; Calico 3720 (this coin); Cohen 45; Elmer 452; 
Schulte 109 d (this coin). 
Very rare.

With permission of Fritz Rudolf Künker GmbH, March 2012
Estimate 75,000 euros.