The following red shellac record is a test pressing recorded on only one side.  The matrix number 11668 and catalog number of 15061-B peg this as a Brunswick pressing.  However, the use of red shellac is a bit of a puzzle since Brunswick didn't use red shellac.  The date of the recording for this matrix number is 10/19/1923, sung by Claire Dux.  This pre-dates their purchase of Vocalion in 1925 which did use red shellac.  Thanks to Ross, Ty and Steven from 78-l for their input.
78 rpm Record Labels - Brunswick

Labels compiled from the collection of Glenn Longwell.  Page last updated on January 3, 2010

Please email if you have questions, corrections or comments on anything you see.  Thanks.