L. Mamilius AE Triens. ca AD 189-180, 8.39 g. 

Helmeted head of Minerva right; oooo above.
Prow right; RO-MA and Ulysses holding staff in left hand 
above, oooo before, L MAMILI below. 

Babelon Mamilia 3. Syd. 369b. Cr. 149/3a. 
Very rare.
With permission of Numismatica Ars Classica, Oct 2011.