Paper/Coins interaction question

JrGMan2004

Ok, I've recently moved all of my Half-Dimes from Cardboard 2x2s, into Saf-Flip 2-1/2"x2-1/2" flips. I need to be able to label them and keep information about them. They are all circulated, but I wanted to know if I need to be careful with what kind of paper I use for the labels. I certainly don't want the sulfur in the paper to interact with my coins. (And the paper would not be in the same side of the flip as the coin) If the sulfur will interact, where can I find sulfur-free paper, and is it economically feasible, or too much money to be worth it? Thank you for your comments, suggestions, answers, etc. etc.

Baley

paper on one side of the flip will have absolutely no effect on the coin in the other pocket of the flip.

this is generally true of unc. silver coins, and is particularly the case with the circulated half dimes you favor.

JrGMan2004

Thanks Baley...