Sorry I didn't give more info.
It's a Model 63k made sometime in the 60's. Since it has a serial number it's probably the late 69s.
The stock is in great condition. The barrel is clean and shiny. There is wear, the bluing isn't perfect.
The grandkid with the most interest in guns is an adult with a little girl of his own. I'm thinking one of the grand daughters would be a better choice.