Also, I have a confession to make : I used to write to Dynasty actors to get autographed photos. I got some !
I unfortunately I think I don't have them anymore (I really can't remember where they can be, I have moved so many times) and I was like 12 years old when I used to send letters to the production ins USA.
The photos I received were real photos, and were "hand signed" (was it really the actor signing ? I will never know. Little chances I think)
For Emma, I think I wrote 3 or 4 times. And I received two answers, with the same printed photo. It was not a photograph, but like a printed card. Even her "signature" was actually printed. I got the identical thing twice. But I also remember that in the envelop with the "photo", there was also a printed letter from Louise Samuelson (Emma's sister) saying it was really important that we (fans) keep writing to Emma, as the show measured the popularity of an actor by the letters the production get...
EDIT : I found on internet the printed "photo" I got twice. It's the exact same thing :