Coinage
Quadrans	1/4 as	copper
Semis	1/2 as	copper
As	1 as	copper
Dupondius	2 as	brass
Sestertius (HS)*	4 as	copper
Denarius	4 sestertii 16 as	silver
Aureus	25 denarii 100 sertertii 400 as	gold

)* in Republican time 2,5 as equaled 1 sestertius.
That 2,5 ratio can be written as I+I+S (S from Semi =1/2) which reads as HS

The basic coins were the as and the sesterius.
In the eastern part of the empire an other system was in use,
with oboles (copper), drachms (silver) and talents (gold).
A Roman soldier in the 1st c AD earned annually 225 denarii
of which 100 was subtracted because of the costs of subsistence.

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Last modified: April, 2016 - (webmaster)