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**Brian Ketterling** · September 3rd 08, 08:55 AM posted to alt.collecting.pens-pencils

In ,
wrote:

My impression of the material was that it had its appearance altered
by being buried, but it might well have been hard rubber as you
suggest.

Yes -- I should say, hard rubber oxidized to that brown color (it was
probably black originally). After exposure to the UV in sunlight during its
working life, the pen would have oxidized due to the moisture in the soil.

Hard to say without handling the pen, though. With the crackles in the
surface, I guess it could be celluloid that was stained brown by the soil...
but it does look like HR.

Brian
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