[pianotech] Strange Green Powder

[David Skolnik]

My dear Southern Brothers -

Would anyone from Florida or Louisiana (or other) have any idea of 
the origin of an unusual lime-ish green powder that seems to have 
been distributed over the hammers and dampers of a Baldwin Acrosonic 
that I looked at yesterday?  The piano lived, previously in the those 
states.  It does not seem to relate to any copper oxidation (the 
strings are fine), nor to any abraided felts (there is nothing else 
of that color).  Could it have been some bug or mildew 
treatment?  I'd like to know, before I try tasting it.  Thanks

David Skolnik
Hastings on Hudson, NY