A while back, revenuecollector posted before and after images of a really mucked up stamp that he had cleaned up and transformed into a presentable copy. This was his cleaning method:
Quote:
Warm to hot water, a few drops of dish soap, about 3 minutes using tongs to "pull" the stamp through the water, then a rinse in clean water, and then 3 days in a Desert Magic drying book with about 30 pounds of weight on it to press out the stamp.
I just finished trying it on one of the stamps that I acquired at a show last weekend. I really like the stamp, as did others when I posted it earlier, but it seemed dingy and soiled to me. Well, the experiment worked, I think. The results aren't as dramatic as revenuecollector's, but the stamp definitely looks better to me.
Before:

After:
