In the link Webbers posted, scroll down to Miniature Rifles. Models 8 through 23 were Flobert, Warnant, or scaled down Remington actions. Models 55 through 365 is what we call a Sakarat. After 365, they were Sakarat repeaters. There were a couple of models that were chambered in 9mm shot. They had a lever handle on the right side of the receiver that worked a case extractor.
Yours is marked Model 1, and 1-7 aren't listed. That's about the same luck I've had trying to find some more info for you. It's like they didn't exist. Years back I repaired a stock on one, and shot it some before returning it to the owner. Shooting it was a mistake, because then I had to have one. Researching them, I ran across a Swede shooting club blog, and a guy there had extensive knowledge on all the models. Unfortunately, the link is dead, and the website no longer exists. I have a list of gun parts places with obscure parts, and the only ones that list any Husqvarna parts, are for the Mauser action center fires.
You might try Dave at Hoosier Gunworks, he has a warehouse full of stuff that isn't listed on his site.
http://www.hoosiergunworks.com/contact_us.html