Hi, I have inherited this vase with blue color pictures of birds and sakura tree, 45 centimeters tall, and no marks on the bottom. It was presented to my grandma in 1956, so all I know for sure it's at least 53 years old, but of cause it's older. That's what I'm trying to figure out - how old it could be and its value. If you can help, you may become its lucky owner one day. I can send you pictures. Thanks in advance!