Thanks for the info and the picture KGB.
In fact, all the information about the sinking was added to the remaining stock, surely just a few days after the tragedy.
I found 2 examples with some info here:
http://9teen87spostcards.blogspot.c...titanic.html I also found that most of the photo postcards inscribed Titanic are actually the Olympic ship (sister to the Titanic) with the name changed.