Notice the changes throughout the year 1917 on these Munitionsfabrik Dresden rounds.
The first two are “normal” copper washed steel cases. Then it gets more interesting.
The third from the left is a standard “S67x” type headstamp.
The fourth from the left (lot 8)has a plain “S” instead of what had become the standard by this time which was “S67”.
Looking at the fifth from the left (lot 7), this one looks like the bunter was orignially an “S67x” style but they ground off the “67”. You can see that the “S” is crowded over to one side of the segment. You can also see that the segment line to the right of the “D” is interupted.
The last round is a standard “S67” style without the segemented “x” which I believe meant no crimping cannelure on the projectile.
It almost seems that some time after the start of Lot 7 (July) they found some of the older higher copper content case material and wanted to use it up. Therefore they ground the “67” off the bunter part way through. Lot 8 (August) was at least started with high copper content material.
I’d be interested to see any lot 7 or 8 with a different variation, or any other “D” headstamp variations from this year.
If you like headstamp collecting, you gotta love German 7.92!