| 1. | Any identification marks were obscured, and the whole mission was kept secret.
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| 2. | His Team 7 identification mark was a cross over his left eye.
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| 3. | His Team 7 identification mark was a lightning bolt over his left eye.
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| 4. | They are engraved with a minute identification mark visible with a jeweler's loupe.
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| 5. | Under identification marks, the German text reads " small mustache ."
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| 6. | It was completed in 1937 and licensed with identification mark 18131.
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| 7. | Watermarks are identification marks produced during the paper making process.
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| 8. | His Team 7 identification mark was an Ace of Spades over his left eye.
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| 9. | His Team 7 identification mark was the same symbol as later appeared on his mask.
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| 10. | His Team 7 identification mark was a trapezoid, pointed downwards painted over his left eye.
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