Originally Posted by
driftrider
I think that what you have might be a Flobert garden gun. It is the only gun I found that has a 6mm rifled/9mm smoothbore side-by-side. I found many references to it with some creative googling. It'd be a good place to start.
Mike
great job driftrider!
I can easily now see that a worn stamping of Flobert could look like Fiocerl
You must be spot on as I can't think of anything I've ever seen or heard of that has this set-up, and the internet showed me the same thing you mention now that you did the detective work.