Tiberius II, AE follis, Nicomedia. DM TIb CONSTANT PP AVG, crowned, mantled bust facing, holding mappa and eagle-tipped sceptre, sometimes with cross above eagle / Large m, ANNO left, cross above, regnal year to right, mintmark NIKO B SB 441, MIB 35.
Voir:
http://www.wildwinds.com/coins/byz/tiberius_II/sb0441.txt
officine A