John III Ducas Vatatzes, 1222-1254 AD. Billon trachy, Magnesia. 

IC - XC EMMA-NOUEL to left and right of bust of Christ Emmanuel facing.
IW DECPOTH KWNST, John, holding labarum, on left and St. 
Constantine on right, both standing facing, holding cross-headed 
sceptre, holding patriarchal cross between them

SB 2093.
Scarce.
With permission of www.rudnik.com, April 2012.