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W.W. Norton
I found lots more by entering "[initials] *" at onelook.com. For instance:

― Carrie Antwoord (jaymc), Thursday, 10 May 2012 14:32 (1 year ago) Permalink
my phonebook lists at least four AAAAA Locksmiths
― remy bean, Thursday, 10 May 2012 14:39 (1 year ago) Permalink