I have a junior size rifle and not come across one before , it is stamped on the cylinder Original Jung Roland. It does not look like a German Original and Jung Roland sounds sort of Swedish but why would you put Original in front of the name, surely there were not fakes back then when this was made. It has a nice stock and the rear sight is substantial. Hopefully the link below gives some photos. Any thoughts and sort of age ?

https://imgur.com/a/4L26QPj