Halved after countermarkong, chisel-groovings on both sides from splitting attempts to create the lower denomination. The value of this series was in fact indicated by the presence of the number of heads on the obverse. One head on a halved coin meaning the value of an as.
The weight-peaks for regular dupondii of this issue are 14 - 11 g (RIC), 12,50 g (RPC I).