Well as requested I've managed to take some mediocre photographs of the pair.
They are classic border only engraving - the standard for many of Horsley's guns and typical of minimalist Yorkshire tastes. The engraving is rather well executed; is some ways simple border engraving is the most difficult since any flaw stands out because it cannot be hidden among multiple scrolls and flourishes.
The initials on each gun make it very clear they were originally E.A.H.'s pair. #2 has a dark patch on the heel of the stock that at first glance looks like a darker wood extension but is not. I think it must have been covered by some sort of add on pad for a period that sheltered the underlying finish of the wood.

'still pondering options on how to handle these, if at all.
By coincidence and a little careful tracking not long after reuniting these I "reunited" another pair that by great coincidence are a perfect fit for me so I don't have much pressure to modify these two to work as a functioning pair for my own dimensions. Perhaps I'll show the other pair if these photos work properly.

(trying a variation on dropbox- we'll see if this works)

Jeremy

https://www.dropbox.com/s/qvl0i26crzm3q7p/EAH-0-web.jpg?dl=0
https://www.dropbox.com/s/55klar61r6ufw3k/EAH-pair-web.jpg?dl=0
https://www.dropbox.com/s/dod054xgfom5hm4/EAH-web.jpg?dl=0
https://www.dropbox.com/s/dbcsxbtrx32s72e/EAH-2-web.jpg?dl=0