
    The People of the State of New York, Appellant-Respondent, v. Sterling Optical Co., Inc., Respondent-Appellant.
    Argued May 8, 1962;
    decided May 17, 1962.
    
      
      Louis J. Lefkowitz, Attorney-General (George C. Mantzoros, Paxton Blair and John J. Calenese of counsel), for appellant-respondent.
    
      Samuel J. Loewenstein and Charles J. Meyers for respondent-appellant. , . _ __
    
      
      Theodore R. Kupferman and Harold Kohn for New York State Optometric Association, amicus curiæ.
    
    
      John V. Scaduto, Robert E. Kusch and Eugene A. Diserio for New York State Optical Employers Association, amicus curiæ.
    
    
      Ira M. Millstein for Retail Dry Goods Association, amicus curiæ.
    
    
      I. Philip Sipser and Richard A. Weinmann for United Optical Workers Union Local 408, International Union of Electrical, Radio & Machine Workers, AFL-CIO, amicus curiæ.
    
   Concur: Chief Judge Desmond and Judges Dye, Fuld, Froessel, Van Voorhis, Burke and Foster.  