
    433 A.2d 115
    Commonwealth v. Jackson, Appellant.
    Petition for Allowance of Appeal Denied Dec. 18, 1981.
    Submitted December 6,1979.
    Daniel H. Greene, for appellant; Eric B. Henson, Assistant District Attorney, for Commonwealth, appellee.
    
      Before BROSKY, WICKERSHAM and ROBERTS, JJ.
    
    
      
       Justice Samuel J. Roberts of the Pennsylvania Supreme Court is sitting by designation.
    
   Judgment of sentence affirmed.  