I personally would not know but here's what admin had to say on the subject:
"Since actors usually have help with their mail, the chances of your getting a quick response are greater if you just send an 8" x 10" SASE (self-addressed, stamped envelope) and request an autographed photo, instead of sending a precious photo, collectible or thingy. "Thingies" have to be forwarded on to the actor, or a meeting has to be scheduled for the signing of them. This takes time, if it ever happens, and results in delay, delay, more delay, and possibly a lost and irretrievable, thingy.
If you have submitted an index card, photograph, or "thingy" for the actor to autograph, it helps if you put your name and address on the back. If it is separated or falls out of the envelope, the actor can still get it back to you. If you have submitted a collector card, put the number of the collector card on the envelope with your return address.
Keep your autographed items down to a reasonable size. Huge framed items and bulky packages are very difficult to transport from studio to home, and from home to post office. Inevitably the actor will have to stand in line because it won't fit in a regular post office box. And, if it is sent to a P.O. Box, the actor will have to stand in line to pick it up since it will be too large to put in the P.O. Box. Inconvenience causes delay.
On that same note, don't send anything that is not important to the ACTOR by "registered mail" or "return receipt requested". If it's that important to you, don't mail it. Wait until that special day when you see them and have a chance for them to sign it."
You can find this under:
http://www.fanmail.biz/mboard/viewtopic ... 117&t=5719
hope that helps.
