Ancient Greek and Roman Coins
Here you will find some books on ancient coins that are out of copyright but still useful to collectors. They will eventually include all BMC Greek volumes that are in the public domain, Recueil général des monnaies grecques d'Asie Mineure (of which the first volume is done), Die Antiken Münzen Nordgriechenlands and others. If you know of a relevant work that is out of copyright and of which you have (or know where to find) a scanned copy (as PDF, images or even usable text), contact me at andreas(dot)reich(at)gmail(dot)com.