Cab Calloway with a signature

I've got an Okeh label 78rpm with (I can't quite read it) but it's to Cab Calloway - Best Wishes, Chu Berry. I could post a pic of it but I guess I'll have to put it on photobucket?

Is it worth anything?

Here's the picture of the record. I guess Chu Berry was Cab Calloway's tenor sax player.

http://img.photobucket.com/albums/v474/ ... ord008.jpg