The freely reusable numismatic data sets from nomisma.org are invaluable resources. The dowloadable data sets are in RDF format, which is good for some things, but not for everything. The nomsima library allows you to read RDF data from nomisma.org and work with it from high-level models in Scala code, or to covert it to delimited text files for use with statistical packages, GIS or other data anlaysis software.