Tetricus I, AE antoninianus. Engravers error.

IMP C TETRICVS PF AVG, radiate, draped bust right.
CARITAS AVGG, Salus standing left by altar, holding patera feeding serpent in 
extended right hand and anchor in left.

RIC V-2, 55 legend with a RIC V-2 126 reverse.
Rare. Not seen in any coin hoard catalogues etc. 

Contributed by Doug Spangle, August 2012.