Listers with a touch of obsessive collector syndrome -- I suspect there
are quite a few here -- will want to inspect this article on the Columbia
Journalism School website:

  http://jscms.jrn.columbia.edu/cns/2006-02-28/friedman-weirdautographs

Titled "New Trend in Collecting Autographs: the Weird and Obscure",
by Matt Friedman, it deals with "niche autograph collectors", and among
those profiled are two collectors of musical autographs, Gregor Benko
and Jim Fuld.  One of Benko's prized specimens, pictured, is an autographed
x-ray of Leopold Godowsky's hands.

  Art Scott
  Livermore, Cal.