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Posted 01/15/2023 11:29 pm
TROP: This it is the description:
Clas IV:
Quote:
Description: A Class IV spread to the west shows on the E, the PLURI in PLURIBUS, and the UN in UNUM. Doubling also shows on the back of the left rear leg.
Die Markers: Obverse: None noted. Reverse: None noted.
Description: A Class IV spread to the west shows on the E, the PLURI in PLURIBUS, and the UN in UNUM. Doubling also shows on the back of the left rear leg.
Die Markers: Obverse: None noted. Reverse: None noted.
Clas IV:
Quote:
Class 4 (IV) Offset Hub Doubling:
The misalignment event involved with this class of doubled die occurs when two hubbings have their centers misaligned directionally as opposed to rotationally. It is characterized as having doubling that is evenly spread in one direction. The doubling is unlike that found on Classes 1 or 5, where the misalignment-event shows a rotation at or near the center (class 1) or at or near the rim (class 5). Doubling is often rounded, found closer to the center, and when identified on numeric or alphabetic characters it will show notching.
Some examples are hemispherical and may involve tilt making them a hybrid Class 4 + 8. It is also possible, if not common, to have at least a small amount of rotation, see 1984 1c DDO-001.
It has been hypothesized that the reason many examples do not show doubling near the rim is because one of the hubbings only received an uncharacteristically incomplete hubbing. Such an incomplete hubbing would result in design elements not being pressed deep enough in the middle of the die, and not at all along the perimeter. The die originates in a conical shape until it is completely pressed down, if the incomplete hubbing was the first, the outer devices may not have been hubbed the first time around. Conversely, if the offset hubbing was second it would have to be incomplete for whatever reason.
Class 4 (IV) Offset Hub Doubling:
The misalignment event involved with this class of doubled die occurs when two hubbings have their centers misaligned directionally as opposed to rotationally. It is characterized as having doubling that is evenly spread in one direction. The doubling is unlike that found on Classes 1 or 5, where the misalignment-event shows a rotation at or near the center (class 1) or at or near the rim (class 5). Doubling is often rounded, found closer to the center, and when identified on numeric or alphabetic characters it will show notching.
Some examples are hemispherical and may involve tilt making them a hybrid Class 4 + 8. It is also possible, if not common, to have at least a small amount of rotation, see 1984 1c DDO-001.
It has been hypothesized that the reason many examples do not show doubling near the rim is because one of the hubbings only received an uncharacteristically incomplete hubbing. Such an incomplete hubbing would result in design elements not being pressed deep enough in the middle of the die, and not at all along the perimeter. The die originates in a conical shape until it is completely pressed down, if the incomplete hubbing was the first, the outer devices may not have been hubbed the first time around. Conversely, if the offset hubbing was second it would have to be incomplete for whatever reason.
Edited by silviosi
01/15/2023 11:31 pm
01/15/2023 11:31 pm
