So I found the email addy and made a request.

A few days later I got an email back from the show. If I want a signed photo I can fax my request or by snail mail and wait a few weeks.

This is the addy for the snail mail request..

Late Show with David Letterman
Attn: Susan Kolenovic
1697 Broadway
New York, NY 10019

I am going to need to try it

I once sent a request by fax (maybe 2-3 years ago) and never got anything...

I sent the snail mail and it worked.

What is snail mail

nice efind