Looks authentic to me.
Have fun collecting.
Best,
Aditya

I mailed this to Katharine in May to a private address in NYC. I didn't think I'd get a response since no one has gotten one and when I returned from the holiday, I had this great surprise! She added an extra cardboard which in turn caused her to pay .14 extra ;)

[url=http://s752.photobucket.com/user/scwillman/media/sig3.jpg.html][img]http://i752.photobucket.com/albums/xx165/scwillman/sig3.jpg[/img][/url]

[url=http://s752.photobucket.com/user/scwillman/media/sig4.jpg.html][img]http://i752.photobucket.com/albums/xx165/scwillman/sig4.jpg[/img][/url]