The hobby of collecting autographs is known as philography.
An autograph refers to a person's artistic signature.
A signature is a handwritten (and sometimes stylized) depiction of someone's name, nickname, or even a simple "X" that a person writes on documents as a proof of identity and intent. So armed with this information, I asked myself what is an autograph? So if it has to be handwritten, does that mean if it is printed, it is not an autograph.
That would mean any return addresses with a PRINTED name is not an autograph. I guess I buy that. (now what if that person's first language is not English and they learned to print English---or if the celebrity was a child who hadn't learned how to write yet). Henry Boucha autograph--Yes or No
http://sanjosefuji.blogspot.com/ who turned me on to his music. Since I also play, my interest was piqued.
Yuto Miyazawa, 11 year old guitarist extraordinaire. Check him out.
His name in Japanese 宮澤佑門. Would this be an autograph. First name signed in English. Yes or No.
Now this short note signed by Bryan Campbell. Signed Soupy, which I think is the nickname of everyone named Campbell. Yes or No.