
    International Union of Operating Engineers, Local No. 66, AFL-CIO, v. Hallstrom et al., Appellants.
    Argued October 7, 1968.
    Before Bum, C. J., Musmanno, Jones, Cohen, Eagen, O’Brien and Roberts, JJ.
    
      reargument refused December 27, 1968.
    
      Anthony S. Guido, with him Gleason, Cherry <& Guido, for appellants.
    
      Sanford A. Segal, with him Gats, Cohen & O’Brien, for appellee.
    November 12, 1968:
   Opinion

Per Curiam,

Decree affirmed. Costs on appellants.

Mr. Justice Musmanno did not participate in the decision of this case.  