<font size=2 face="sans-serif">I have written a brief document, with pictures.
 See </font><a href="https://docs.google.com/document/d/1hQQGHId-z1A5LOipnBXFhsU3VAMQdSe-UXvL4VPY4ps"><font size=2 face="sans-serif">https://docs.google.com/document/d/1hQQGHId-z1A5LOipnBXFhsU3VAMQdSe-UXvL4VPY4ps</font></a>
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<br><font size=2 face="sans-serif">Regards,</font>
<br><font size=2 face="sans-serif">Mike</font>