Claudius, Sestertius DV countermarked 
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Claudius, Æ barbaric sestertius, revalued as a dupondius, (16.37g) [TI
C]LAVDIVS CAESAR AVG. . . . Laureate head right, retrograde DV countermark
on neck, notch at 2:00. / SP. . . Spes standing left, SC in exergue. cf.
RIC115. 
Lightweight barbaric sestertii of Claudius were revalued in the Balkans, as
dupondii with a notch at 3:00 and a DV countermark.