What kind of gain can one expect from common proofs that are toned in amazing color and/or grade?

I've got some Jefferson nickels and Roosevelt dimes that I found in my brothers albums. They've been there for about a year and a half. They went in looking close to if not cameo, and some came out with great purples, some blue, some a mix of green, yellow, and pink. Some came out the exact way they went in. A few came out with a dark nasty toning look. Any idea on what kind of mark up percentage there is on these. They're all from the early 60's.
Scott Hopkins
-YN Currently Collecting & Researching Colonial World Coins, Especially Spanish Coins, With a Great Interest in WWII Militaria.
My Ebay!
-YN Currently Collecting & Researching Colonial World Coins, Especially Spanish Coins, With a Great Interest in WWII Militaria.
My Ebay!
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<< <i>The markup depends on how strong the color is, how high they grade (if they get in), and how good a picture you can take. Until we can see the coin, all that can be said is "it depends." >>
I can't take pics now. Sorry. But for the most part they are extremly strong in color and grade at least PR-65, some I believe to be a lot better.
-YN Currently Collecting & Researching Colonial World Coins, Especially Spanish Coins, With a Great Interest in WWII Militaria.
My Ebay!