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sonic cleaning machines
Dear
List:
In speaking with a researcher (a retired dentist) he inquired about using "ultra
sonic cleaning machines," similar to what dentists use to clean their
instruments, on items like old silver candlesticks. I have not found any
research on this and am asking if any of you have any ideas as to pro or con in
terms of damage & preservation concerns.
Thanks,
Heidi
Christein
Jewish
Community Archives
Metro
Detroit