Why do some types get listed twice, with two distinct RIC numbers?
RIC IX has many
indistinguishable types with two different numbers. It makes sense if
you think about the cataloging problem. Suppose an issue begins under
emperor A and continues after co-ruler emperor B is elevated and the
elevation is celebrated with a new type. So, now there are two
distinguishable time periods (before and after). If the continuing type
is listed for emperor A in the first period, should it be cataloged
with only that one first number? But that would make it seem to not
belong to the second issue and make it unlisted in an issue where it
was still issued. So, RIC
catalogs it again in the second period with a second number, even when
the coins of that type for emperor A from the first and second periods
Here is a timeline of events that distinguish periods.
Return to the main page on types of RIC IX.