The problem is that there are MANY factors. 1. Dates - at this time I'm not paying serious attention to the Braided Hair issues (1839-1857). 2. Identifying Die Varieties (Newcomb Number) -- I'm currently using books by Noyes and Wright. -- The Braided Hair issues (1839-1857) are on the back burner for now because there are often many die varieties per date (30-50), many of which take require coins graded in the MS 63-65 range to identify. (I also have Grellman's book which I'll use later to help with these coins.) -- Images from online auctions often leave much to be desired for IDing varieties. 3. Grade - Strictly a function of price which means mostly below MS; I'd like to get VF to AU. 4. Rarity - I'm using the Noyes' books to guide me in this. 5. Value Source - I'd like to find auction results tied to grade and Newcomb Number, but's easier said than done. Right now I primarily use the Greysheet but it doesn't tie in with Newcomb Numbers nor rarity very well. And I haven't investigated PCGS pricing. I'm looking for suggestions as to how best to price a coin. Currently I'm using the Greysheet and trying to match it with a coin's description. What do you do IF you can ID a coin's grade AND die variety?