Green chalk on Steinway keyframe

[Antares]

>
>In our part of the country sometimes the source of the green dust is the
>excrement from carpet beetles who have digested large amounts of green
>felt and then have left their tell-tale marks. 
>
>If this is the case however, you should also find some red dust from the
>red felts.
>
>Jim Coleman, Sr.

And Jim... if we find red dust... what kind of beetles should we think about
then?

André