L. Mamilius Sextans circa 189-180, AE 6.84 g. 

Bust of Mercury right, two dots above.
Prow right, Ulysses holding staff in left hand between RO–MA above. two dots to left, L MAMILI below. 

Babelon Mamilia 5. Sydenham 369d. Crawford 149/5a. 
Extremely rare.

Estimate: 250 CHF.

With permission of Numismatica Ars Classica, auction 6, lot 661, Oct 2011
Ex CNG 45, 1998, lot 1357.