Herman thank you very much for your reply, the knife is not mine but I have seen for sale but before you decide anything always prefer to hear your advice and make sure that the HJ knife was 100% original ...

Herman Bone "it is possible that this knife had the seal manufacturer" Puma "in the back of the sheet and would have lost time?

Or Knives HJ, 1939 was without that stamp on the back of the blade?