Thanks everyone. My primary interest here is did I call it correctly? I have very little experience with cuds or pre cuds.
Certainly being that close to, and from rim to rim it had every potential to become a full cud if the die deteriorated further there
Sure, that has to be one of the ways those form. From the small acorn grew the great oak tree. There are fewer retained cuds as the rims are where most of the dies start to crack up.
I would surmise, that in order to be able to call it a pre cud, you would have to find another in the exact same position that actually turned into a cud. I'd have to go with rim to rim die crack until a cud in this position is reported.
Look here, there are several of them. Washington Quarter Cuds; 1932 – 1999 : Cuds on Coins (cuds-on-coins.com)
technically it's a curved rim to rim die crack. the crack is only a lateral fracture and not much spread. For it to be a pre-cud there should be more separation, a horizontal or vertical spread of the crack. For a cud it would have totally broken off of the die. A pre-cud should show some sort of Vertical or Horizontal displacement or "spread" of the fractured portion from the rest of the die. I mean, technically speaking, a pre-cud, and eventually a cud would appear, if they continue use of the die, but this is way early in the progression to it happening. So, generally speaking, you ain't wrong to call it a "pre-cud" but technically speaking it's a curved rim to rim die crack still and in it's infancy on it's way to becoming a pre-cud or cud, and if they took the die out of use, then it wouldn't have much significance because there wouldn't be examples of the rest of the progression to cud. Cuds-on-coins doesn't show a 1976P at all, I'm not sure if this die was taken out of service early and that's why it never progressed to cud, or if they just don't have an example of one yet on there. I know for a fact there's more than a few cuds they don't have listed that should be that are significant.
This is what makes the old coins (including my fave, the capped bust half dimes minted from 1829 to 1837) so enjoyable - you can chart the die progression from early die state all the way to those terminal die states that have huge cuds. The early mint got ALL the mileage out of their dies! The John Reich Collector Society (JRCS) has a Late Die State Showcase that some may find interesting. Loads of pics, may take a while to render.