Price Guide For French Coins?

Thanks. I am trying to put together 19th and 20th century type sets of French coins. I count about 173 "types" in this time frame. I am about 90% done with the 20th century set (readily available and not expensive), but am only about 10% done with the 19th century set. I have been using the NGC price guide and the "sold" listings on ebay for a rough idea of pricing/values to help me generate a bid for the coins that become available. I'd like to have another source of relative or absolute values/pricing, especially because many of these types don't have much history in the ebay "sold" listings (and it's nigh impossible to search types on ebay), and it's always prudent to "second source." Auction houses have a little help, but most of the coins I am looking at/for don't rise to the price levels typically seen in auction house listings.

good idea. I have the 20th century volume, but not the 19th century. Need to clear more shelf space {grin}

very helpful, thanks, merci, danke, takk, gracias, arigato, xiexie, and all the others.