Hello wqdqwd, in early times there WERE army daggers wi numbers eg HÖRSTER did it. Also Gov. and Diplo daggers had numbers (assumable till the end). These are all hidden and I think have been an information for the producer. TN daggers and hewers had numbers which could be seen and assumable have been in a list (we never have seen up to now). An SS dagger only have numbers when the wearer did decide to mark it. So there is a lot of different aspects (I only listed some of them) concerning edged weapons and numbers.
Yes, without any doubt a blade of ANY III Reich dagger, therefore also army daggers, should be magnetic.
Regards,
| 
