[78-L] first use of ghost logo?

[AllenAmet at aol.com]

An old question perhaps:
 
  What date did we decide for those Nipper/Gramophone ghost logos  beneath 
the grooves for black 7" Berliner discs sold in Canada - was it  late May 1900 
or May 1901?
 
  I ask because I am looking at an old advertisement (actual text  copy) in 
Ed Moogk's book:
 
     "We are now stamping our records with our  Trademark through the 
grooves..."
 
   This ad supposedly appeared in the Canadian Music Journal for  May 1901. 
Or it is so shown/cited as such in Moogk's book caption.
 
Is the date correct, as given in Ed's book? Has anyone looked thru the CMJ  
for that period (1900-1901) for the first use of this ad?

Allen
 
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