Here is the scan of the letter from JKR

[davewitley]

holmesclan2002 wrote:
> 
>  Thanks for a peek at the actual letter! One question... is that 
a "Christian Fish" symbol 
> after the 'Jo" signature?  Or am I just reaching for clues?
> 
> -Mel, who has just finished reading  'The Hidden Key to Harry 
Potter' , and is now more 
> curious than ever about symbols in literature!

Like Saitaina, I think it's just underlining her signature.

I'm more interested in the spider motif on the first sheet.  It 
seems a slightly unusual choice.  What are the four dots on the back 
of the spider?  Any thoughts?

I am also asking this question on the LJ, under my LJ user id of 
sageofgodalming.

I repeat the url for convenience:

http://www.livejournal.com/users/the_letter_box/7059.html

David