| POSSIBLE CONSTANT VARIETIES (not mentioned in available literature) |
| 20 c., blue |
| 1 |
The thin horizontal line behind the emperor’s head. |
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| 2 |
Small dot connecting letter F in FRANC with inner white frame. |
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| 3 |
The second letter E in EMPIRE deformed, white spot below the dot between the letters EMPIRE and FRANC. |
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| 4 |
A white triangular spot below the dot between the letter S and numeral 2. |
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| 5 |
The lowest horizontal stroke of the second letter E in EMPIRE is thick, letter R in FRANC is almost completely white. |
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| 6 |
The top outer frame is broken in several areas, medallion with the emperor’s portrait is connected with a lower white frame by a vertical line. |
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| 7 |
The second letter S in POSTES is deformed. |
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| 8 |
A blue dot on the second vertical line of the letter N in FRANC. |
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| 9 |
Multiple scratches on the top and bottom inscriptions. |
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| 10 |
Letter R in FRANC is broken on top. |
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