The flaming bombs are inspectors marks. They will appear at various places on a commercial. Your Luger has the American Eagle on the chamber and the Germany stamp on the front. It is an 1900 AE Commercial imported into the U.S. for sale to the sporting and gun buying public. It was not issued to the U.S. Army. It is probably in better condition that the test guns.
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Noli me vocare, ego te vocabo,
wes
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