Generally I always considered the WaA markings to be proofs. My reasoning is that they (as well as the Eagle/N & Crown/N) indicated acceptance.
I am aware that another view point is that the WaA markings are not proofs as these markings only identified what organization had approved/used the piece. There is merit to this as there are a number of different markings applied to the weapons over a period of time - examples of which could be the unit markings seen (usually) on early german weapons. Many of these would not be considered proof marks.
I am aware that another view point is that the WaA markings are not proofs as these markings only identified what organization had approved/used the piece. There is merit to this as there are a number of different markings applied to the weapons over a period of time - examples of which could be the unit markings seen (usually) on early german weapons. Many of these would not be considered proof marks.