Hi guys,
The Red Book is a good guide for pricing coins. However it should be noted that the Red Book is what you will pay for coins (most likely form a dealer). On the other hand, the Blue Book (it's counterpart) is the guide for what you will get for selling coins (again most likely to a dealer). The difference between them is quite often 40-50%.
Unfortunatly, both books are really obsolute by the time they are printed. Coin prices change every day, and so the books are just a rough estimate. Even monthly magazines, such as CoinValues, which has coin buy prices, should still be used as an estimate.
I estimated the +/- $5 value of those coins based on the August 9th, 2004 issue of CoinValues magazine. CoinVlaues lists the buy price (which is the price you would pay if you bought the coin from a dealer), I choose a G-4 condition, which is the lowest condition they list, and basically coinsides with the definition LifeNRA posted above. Then I took 60% off of that, leaving you with a 40% sell price. Which is usually what you would get if you walked into a coin dealer off the streat and knew nothing about coins.
Again, it's just like trading in your car at a dealer, you get less from the dealer than you would from a private collector. The problem for most people would be finding a private collector who wants your exact coin. For most people going to a coin dealer is much easier, and worth the difference in price.
Nitnos, I hope this helps, and if you want to sell the coins let me know, I'll ask a few coin enthusists I know if they want them, that way you'll wind up getting a little more then if you sell them to a dealer.