I added five coins of Persis to the "Greek" page my site: http://augustuscoins.com/Greek.html I recently posted an educational page about coins of Persis: http://augustuscoins.com/ed/Persis/ The best book on them is free in pdf (link on those pages). Here are images of the coins for sale. The first two are drachms and the others obols. For attributions, sizes, prices, shipping (inexpensive) see that first sale page. I also have a page of ancient-coin numismatic literature for sale: http://augustuscoins.com/numislit.html Yesterday I reduced prices substantially on almost everything on that page. If you would like to read about and look at image of ancient coins, the web does a lot but some books do more (and they are usually much cheaper than coins!). For other Roman and Greek coins for sale, begin here: http://augustuscoins.com/index.html