Its one of those where you have to go and see,could well be a dead end.Antique dealers make many mistakes in adds and have no clue what they are selling.When you call and ask about chokes, chambers,or condition they have no idea what to say.
I once went to a auction that had a "Japanese Luger" in description,it was a Nambu,didn't get that one but picked up a nice S42 Luger all matching including mag for $600.

Hillary For Prison 2018