that gun is much earlier than 1890....a quick look at the "other useful information" at the bottom of the page here says 1871. and, while i'm far from expert, i don't think i've ever seen a scott with the adjustable bite that early - i'd suggest looking closely for apun number regarding the adjustment feature.

other than the few scars on the butt stock, the gun looks to be in surprising condition - hope it comes through with shining colors when you get it in hand.

best regards,

tom

"it's a poor sort of memory that only works backwards."
lewis carroll, Alice in Wonderland