Thanks to this thread I did a search on something and found

http://www.oac.cdlib.org/findaid/ark:/13030/c8pn940b/entire_text/

So now I am wondering about Stanford's metal parts collection, in 
particular:

"Box 1-18
Music Library Recordings

Physical Description: 468 metal parts
Scope and Contents

Music Library Recordings was a San Francisco label founded by Earl 
Walker in the late 1940s which issued recordings primarily of chamber, 
piano, vocal and choral music from composers such as Chopin, Dvorak, 
Bloch, Krenek, Nixon, Sessions and Antheil. Many of Music Library's 
albums documented local composers, musicians and previously unrecorded 
works.The majority of parts are from the MLR-7000s, including 
performances by the Stanford University Choir, Sandor Salgo conducting a 
work by Leonard Ratner, and an album of Japanese koto music."

Is there a catalog of these parts? I am particularly curious about the 
piano recordings.

Joe Salerno

On 9/12/2012 9:52 AM, David Weiner wrote:
> I think they are pretty rare, being sold by subscription only.  Copies do
> turn up in auctions (especially Lawrence Holdridge's yearly list) and on
> eBay.  In fact, I just had three listed for sale there myself.
>
> Dave Weiner
>
> On 9/12/12 12:50 AM, "Stephen M.H. Braitman" <[log in to unmask]>
> wrote:
>
>> Hi, Folks:
>>
>> Some cursory searching has not uncovered any listings in the obvious
>> sources for any of the releases by the Historical Master 78 rpm
>> reissue series. Maybe I'm looking under the wrong names, but I can't
>> see anybody selling any of these anywhere. I'm particularly
>> interested in knowing the rarity/value of the first 20 releases in
>> the series.
>>
>> Are they just too rare, or just too common, or just too boring.... ?
>>
>> The Web site doesn't seem to have been updated in awhile:
>> http://www.historicmasters.org/
>>
>> Thanks for any leads.
>>
>> Stephen
>>
>