
    (No. 6120
    Root Brothers Mfg. & Supply, An Illinois Corporation, Claimant, vs. State of Illinois, Division of Highways, Respondent.
    
      Opinion filed October 12, 1971.
    
    Korshak, Rothman, Oppenheim & Finnegan, Attorney for Claimant.
    
      William J. Scott, Attorney General; Saul R. Wexler, Assistant Attorney General, for Respondent.
   Perlin, C.J.  