A few days ago, I purchased a 1920's Leedy/Ludwig bass drum muffler. I am very pleased with my purchase. The muffler has a rich bronze colour patina, almost like a vintage cymbal. There is no felt left at all. Well, after eighty or more years, that's understandable. What was left however was a lot of very thick "glue" deposits around the inner surface of the bell. I finally got rid of the gunk. What I'm wondering though is, was the felt held in place by a very strong type of glue? What might it have been? Once I find some nice thick felt, about five inches in diameter, what would be the best way to attach it? I don't want to ruin the patina but I would like to restore this beauty as closely as possible to the original. Please, any help would be greatly appreciated. Thank you.
Brian