Magnus Maximus, 409-411 AD. Siliqua, 0.74 gr, Barcelona (Barcino) mint. 

Obv: DN MAXIM-VS PF AVG, pearl diademed, draped, cuirassed bust right
Rev: VICTOR-A AAVGGG, Roma seated left on cuirass, holding Victory 
on globe and inverted spear. Mintmark SMBA.  

RIC X 1601, rated R3.

Contributed by "SMF", Nov, 2009.

Barcelona (or Barcino as it was known) was used as a mint only 
for 2 years and only under Magnus Maximus. The mintmark SMBA 
was listed by Cohen but was doubted by many savants until a 
bronze coin with the mintmark was found during excavations 
in Barcelona in 1958.