Augustus AR Antoninianus. 

obv: DIVO AVGVSTO, Radiate head of Augustus right 
rev: CONSECRATIO, eagle standing facing, head up. 

Struck by Trajan Decius, 250-251 AD.

Rated Rare by RIC. (Seems a bit rarer than the corresponding altar type.)

RSC 577. 

Contributed by Melqart, 2001