I am a collector of mechanical disc music boxes and I have various
sized steel and zinc metal discs that need to be cleaned.  What is
the best and safest way for me to clean them so that I will not damage
the combs and star wheels on my machines?

John Birch

 [ MMDigest articles about cleaning are indexed at
 [ http://www.mmdigest.com/archives/KWIC/C/cleaning.html 
 [ -- Robbie