I can't help with a specific treatment, but I do know of
someone reputed to be one of the best drum conservators in
the east.  Maybe he can help.  Contact:

        Bill Reamer
        RD 2 Box 2655
        East Earl, PA 17574
        (717) 355-2643

Andree M. Mey
Curator of Collections
Lehigh County Historical Society
--
Lehigh County Historical Society
PO Box 1548, Allentown, PA 18105
(610) 435-4664
[log in to unmask]