Thanks Guys
Winder was a typo, I changed it to Wender soon after putting it up. I love the little Winchester Winder "muskets" and the guy that gave me this has one in excellent shape. He collects Winchester and will never give up that one. LOL
I looked at the gun (rather than pic) again and agree it is most likely Rosenberg.
Also looking again, both are smooth bore but the one with sight prob used to be a rifle that was bored out to use a a shotgun. Will take pics later.
I'll get some pics of the mechanism for you Dan. It was in pieces when I got it and I had to figure out how it went together. Sometimes it is nice to get relics as if it were pristine I would be afraid to touch it. I also would not be able to afford it.
"rifle" bbl ~0.56" a lot of rust but too thin to be rifled.
shotgun bbl ~0.53"
I have gotten a lot of info from you guys. Will go out to the pack barn and see what else is there.
PS Just posted it here to see what our German friends think. They are nice guys, have a very diverse forum(hand cannon to MGs) and have been very interested in American guns.
http://www.militaria-fundforum.info/showthread.php?p=1957316#post1957316