Missing border, broken border. Both work.
https://baseballcardvariationsguideb...iations-index/
It is not reflected in the variation guidebook. But, that does not mean it is not collectible to a variation chaser. I don’t believe I have seen it listed anywhere. But if you go through the lengthy variation thread here, I am sure you will find some examples. This site is where I came across it.
I cannot say that I have seen one graded and noted. But I can also say I have never looked for one either. Maybe check the PSA registry and see if it is listed there.
As for how it is documented is subject to interpretation. Myself, I just call them variations. Works for me.
Butch