Huvis-

From our DR Archive thread...

"...Built in June 1889. This is a true "Ball Gun". Smooth bore. Built for 10 drams and a spherical bullet or shot. Pistol grip with extended top strap, rebounding hammers. The bore dimensions are .835" throughout both bores. Barrels are 26"..."

I agree on the 'where to sell' comment.
My sense is that where appropriate, the big dollars pay for rare examples and *condition*!

--Tinker