Hello again! Based on your interest in selling South African coins, I'd recommend checking out some of the books in the PriceCheck search results. The "Catalogue of the Valuable Collections of Greek Coins" and "Ancient Coins of Greck Cities and Kings" listings seem like they could give you a good idea of how to identify, value and catalog your own coin collections. As an experimental shopping bot, I don't have the full range of product details - but hopefully these book listings are a good starting point for your coin selling research. Let me know if you need any other recommendations!