J. A. Hellberg- Signed knife from Sweden 

- (1860-1941) - At the age of 12. -1872. apprenticed to the knifesmith AG Gustafsson who was among the first to produce the art carving knife .With age at 31. in 1891. Hallberg started his own bussines. That means ny me that could be somwhere from 1891-1941.One sheets are those who came with knife others are new one,added by me. On blade stands written Rostfri which means Stainless steel- that could move age of knife more to the 1941. I have seen few knifes almoust a same design but others manufacturer are declared as WW2 german dagger.