Why did Grandma wait ten years...?
Why did the dowager empress wait ten years to put Anastasia's picture in the paper and say she would give a reward to someone who found her? (I assume it must be the first time she did it considering how much excitement it caused in St. Petersburg)Is it possibly because if she'd drawn attention to the possibility that Anastasia could still be alive earlier then maybe the people who killed the family would start looking for her?
That's all I can think of, otherwise it doesn't make sense that a loving grandmother would wait 10 years to actively search for her granddaughter. In 10 years, the possibility of finding her would have lowered significantly. She could be dead, in another part of the world, look a lot of different, etc. It seems like if she'd gone public about it earlier then maybe Anastasia could have been identified in the orphanage she was in or something.