﻿Plate 
  22 
  

  

  Stone 
  pipes. 
  I, 
  2 
  and 
  3 
  are 
  from 
  the 
  topsoil 
  or 
  general 
  occupied 
  layer 
  

   4, 
  5, 
  6 
  and 
  7 
  are 
  from 
  graves 
  

  

  