
    417 A.2d 787
    Commonwealth v. Brock, Appellant.
    Submitted May 7, 1979.
    Patrick McFalls, Assistant Public Defender, for appellant; Robert L. Eberhardt, Assistant District Attorney, for Commonwealth, appellee.
    Before VAN der VOORT, LARSEN and LAVELLE, JJ.
    
    
      
       Justice Rolf Larsen of the Supreme Court of Pennsylvania, and Judge John E. Lavelle of the Court of Common Pleas of Schuylkill County, Pennsylvania, are sitting by designation.
    
   Judgment of sentence affirmed.  