It appears I was wrong thinking it was a bottom end Belgium gun and people here think its maybe a Stevens or a Riverside or something special like that. Its certainly not a gun that we see a lot of here.
But this is a Parker website and people here know a lot about Parkers and maybe not others. From what I've seen, there are a lot of experts on
www.doublegunshop.com
who may know the history of these amazing guns and may be able to fill you in on all the details.
Bruce Day, unreformed Yankee Air Pirate and Parker fool