
    Commonwealth v. Perschka, Appellant.
    Argued November 11, 1970.
    
      Michael J. Wherry, Assistant Public Defender, with him Warren R. Keck, III, Public Defender, for appellant;
    
      Robert F. Banks, First Assistant District Attorney, with him Joseph J. Nelson, District Attorney, for Commonwealth, appellee.
   Judgment of sentence affirmed.  