 <TD><IMG SRC=septagon.gif>
    <TD><IMG SRC=octagon.gif>
    <TD><IMG SRC=doublecircle.gif>
    <TD><IMG SRC=doubleoctagon.gif>
  </TR>
  <TR ALIGN=CENTER>
    <TD><A NAME=d:septagon>septagon</A>
    <TD><A NAME=d:octagon>octagon</A>
    <TD><A NAME=d:doublecircle>doublecircle</A>
    <TD><A NAME=d:doubleoctagon>doubleoctagon</A>
  </TR>
  <TR ALIGN=CENTER>
    <TD><IMG SRC=tripleoctagon.gif>
    <TD><IMG SRC=invtriangle.gif>
    <TD><IMG SRC=invtrapezium.gif>
    <TD><IMG SRC=invhouse.gif>
  </TR>
  <TR A