A member is the current custodian of this 8mm rifle and we were trying to determine the stamp under the Blättchenpulver powder load - >>S.G.<< Possibly S G - „S“ Geschoss? More than likely biased any answers but will entertain any & all. Too the 4000 - ATM components aren't really present but this is the palette where they were applied. The Zella-Mehlis Proof Facility used the >>Crown - Crown over N<< stamp elsewhere as Nitro and said stamps are present on the tube & bolt handle of this one or another we discussed.

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Serbus,

Raimey
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