My broken pen

Here is my broken Parker 51 fountain pen.  You can see how I broke off the top part of it. 

I know when I first got this pen years ago from my mother I sent it off to Parker to get it fixed as it would not accept ink. They wrote back telling me this is an old Parker 51 pen, with a gold-filled top. 

I am sure my mother got this in high school probably from her mother. 

Steven