Silver denarius, 19mm, 3.89gm, issued 81 BC. Rome mint.
Obv: Head of Diana draped right, bucranium above, bow and quiver over shoulder.
Rev: A POST A F S N ALBIN, Togate figure holding sprinkler over bull, altar between, on rock.
Cut on obverse.
Reverse alludes to sacrifice to Diana which made Rome 'caput rerum' (head of things, the capital).