Ron, if you are talking about current rules, the firearm (any firearm, not just ex-military) must have markings indicating both country of origin and importer. In bygone years, requirements have varied or been nonexistent. But in most cases, the exporting country required its name to appear, as with Germany. I guess they were rightly proud of what they made...as we once were.
...just looking at the SIG P-210 on my desk, vintage 1969...no importer marking of any kind, no country of origin stamped...just "SIG" enclosed in an oval and that wonderful Swiss cross, which says it all, or so they correctly thought.
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