Morgan Dollar 1878, 7/8 Tailfeathers

I went to the VamWorld site (https://vamworld.com/wiki/1878-P_VA...Feathers.29) but there are over twenty different varieties of this one (and I thought it would be easy! ... )

So, once again, I would really appreciate some help. If you can immediately spot the relevant variety, that would be great! Otherwise, just point me in the right direction. Here I will start with a close-up of the 7/8 TF region:


And here are the full obverse and reverse images:



I would like to mention that I inherited this coin from my parents who kept them in a jewelry box, unprotected from humidity, in the South Texas Gulf coast area. I saw these in that box in the late 1960's. After that, at some point in time (after 1970) they were transferred to a Whitman folder with all the negative side-effects of that environment. So, BU they ain't! But the detail is still mostly there, and this one was never cleaned... (at least not by me!)

Thanks for your help!