Found one in a LGS in Northern Minnesota. It was on display for about an hour. I had headed for a pawn shop to poke around and ended up parking near a gun shop. I thought great, 2 look arounds for one stop! Never been to either one before.
I've been on hunt for an old double and been searching the web for gun shops and calling them with in a 2-3 hour drive and not having any luck except for the other 1889 that had cracked stocks and cost more than this one. This shop was not on the radar at all.
https://imgur.com/a/gfWp9rA
https://imgur.com/a/5v92gBY
So here it is... I guess there isn't much info on these having nickel plating? It locks tight and I fired a couple 1 3/8 oz loads of 6 shot with 29 grains of Longshot from Seyfried's article but he listed 1 1/4 oz. Both chokes measure .750