I just noticed... The new brake fluid bottle has an overfill drain, you can see it in the first picture of the previous post, near my thumb. As well, the lettering "Ate" is on the right hand side on the replacement, as opposed to the left on the original. It also appears that the original had more squared corners than the new bottle. I will keep the old ones in the "authenticity" file for the car's next guardian.
I tried to show the overfill drain better in this post's attached picture.
J