Leo I, AR light miliarense. 22mm, 4.31 gr. 457-474 AD, Constantinople. 

D N LEO PERPET AVG, pearl diademed, draped, cuirassed bust left.
GLORIA ROMANORVM, Leo, nimbate and in military dress, standing
left, holding globe and raising right hand. Star in left field.
Mintmark CON.

RIC 644 (this coin); MIRB 19b (this coin illustrated on plate 9).

Extremely rare.

Contributed by Dr. Hubert Lanz, auction November 2000, 
Added July 2011.