I have a plate with the same Titanic mark on the back as the one that just sold on Ebay although mine does not have the purple ? grapes. It actually belongs to my stepfather who is 82 and he got it from his aunt who was probably born around 1900. I've always wondered about this plate and when I read the story about the homeless man selling his, I just had to do some research for myself. I would appreciate any and all information and I can post a picture if anyone is interested.