
    (No. 6049
    Minnesota Mining and Manufacturing Company, Claimant, vs. State of Illinois, State Fair Agency, Respondent.
    
      Opinion filed November 9, 1971.
    
    Charles W. Ott, Attorney for Claimant.
    William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  