The two headstamps shown below have been known for decades to 9mm collectors in the US and were generally considered to be German. Fred Datig told me he found the first ndn headstamped round in the early 1950s in a large batch he had a chance to dig through in the main Police station in Berlin. These rounds subsequently showed up in a number of places, including in central Africa.Given the unlikely companies identified by the ndn and oma codes, it has been generally agreed that these were made in Czechoslovakia post-WWII as clandestine ammunition. The fact that the rounds occur with both GMCS and CNCS bullets and both have the same overall weight (166gr-170gr) as the Czech steel core rounds from this period.
The one thing that has been missing is a box for either of these cartridges. I have never heard even a rumor of such a box.
Recently a 16 round box turned up which contained two oma rounds and one ndn round. The box contained 13 rounds headstamped (triangle) (star) 12 49 and had been resealed with a thin brown paper covering the original label.
I soaked off part of the brown paper to see the label underneath. It turned out to be a standard label from Zbrojovka Brno.
It appears to me that this box was repacked with the ndn and oma rounds added, and then resealed.
Has anyone seen original boxes of the ndn and oma rounds?
Has anyone seen Czech resealed boxes similar to this one?
A great deal of this post-WWII 9x19 ammo came into the US as shooting ammo some time back. I have seen some of the 40 rd boxes resealed similar to this box. I would guess this box came to the US at that time, probably sealed and that the resealing was done in the Czechoslovakia.