WW2 M3 Trench Knife Boker 1st pattern 1943?

[AntiqueOutings]

Just wondering if the WW2 M3 Trench Knife produced by Boker ever had the 1943 date stamped on the blade. So far I have been able to track down images for the other 8 manufactures and confirmed that the first patterns all had a 1943 date stamp.

I have been writing an article on the M3 Trench Knives and am trying to gather as much info on these as possible. I know Boker now produces replicas with the 1943 stamp on the blade, but I haven't seen originals with that stamp.