Is there a set of established standards for visual evaluation of 78
rpm discs? I'm working with the owner of a significant collection to
catalog the discs and ultimately transfer them to digital form. I
would like to include a preliminary note about the apparent condition
of each disc as part of the preliminary catalog.
Obviously, the ultimate evaluation of each disc requires playing it,
but as a first step, I want to go with a visual examination.
So I will welcome your pointers to any kind of commonly accepted
terms for describing 78s. Thanks in advance.