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Established 7 September 1928. Awarded to civilians and military personnel for exceptional service in production, for scientific achievement, or for government or public service. |
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Type 1 Variation 1 R5 |
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Screwback. 1928 version. Large depression on reverse. |
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Type 1 Variation 2 R4 |
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Screwback. 1928 version. Small depression on reverse. detail pic |
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Type 2 Variation 1 R3 |
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Screwback. 1936 version. Mint mark detail pic |
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Type 2 Variation 2 R3 |
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Type 2 Variation 3 R3 |
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Type 3 Variation 1 R2 |
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Type 3 Variation 2 R2 |
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Type 4 R1 |
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5-sided suspension. "Semi-Long Oval". Mint mark is in center of reverse. full obverse pic detail pic |
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Type 5 Variation 1 R1 |
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5-sided suspension. "Short Oval". Mint mark is on two lines, in center of reverse. full obverse pic detail pic |
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Type 5 Variation 2 R1 |
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5-sided suspension. "Short Oval". Mint mark is large and curved on one line. full obverse pic detail pic |
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Type 6 Variation 1 R1 |
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Type 6 Variation 2 R1 |
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5-sided suspension. "Ring Reverse". Rotating-tool engraved serial number. full obverse pic detail pic same type/variation with serial number underline |
