Popular Post J P M Posted September 15, 2022 Popular Post Share Posted September 15, 2022 I am always role hunting for book coins and odd things. I thought I would post this for fun, it is kinda cool looking. Maybe see if anyone has seen a strike through like this before? I see three lines in the field passing across the neck on a angle. It could be a clash of the roof of Monticello but the die would have had to turn and be out of place to get that angle and location. Take a look and let me know what you think. Lem E, GBrad and Fenntucky Mike 3 Link to comment Share on other sites More sharing options...
asdfgh Posted September 16, 2022 Share Posted September 16, 2022 this is not a strike thru. the lines are grooves in the face of the die. sometimes called feed finger damage. Fenntucky Mike 1 Link to comment Share on other sites More sharing options...
Fenntucky Mike Posted September 16, 2022 Share Posted September 16, 2022 They look like die gouges to me as well. GBrad 1 Link to comment Share on other sites More sharing options...
J P M Posted September 16, 2022 Author Share Posted September 16, 2022 (edited) On 9/15/2022 at 11:33 PM, asdfgh said: this is not a strike thru. the lines are grooves in the face of the die. sometimes called feed finger damage. That's what feeder damage looks like , Thanks asdfgh I have heard of it but never looked into it. I will check it out now. Edited September 16, 2022 by J P M Link to comment Share on other sites More sharing options...
J P M Posted September 16, 2022 Author Share Posted September 16, 2022 On 9/16/2022 at 6:22 AM, Fenntucky Mike said: They look like die gouges to me as well. I took a look at the feeder scratches and they are not quite as large as these groves. These are in the die for sure maybe just a extreme example. Fenntucky Mike and GBrad 2 Link to comment Share on other sites More sharing options...
Fenntucky Mike Posted September 16, 2022 Share Posted September 16, 2022 On 9/16/2022 at 8:13 AM, J P M said: I took a look at the feeder scratches and they are not quite as large as these groves. These are in the die for sure maybe just a extreme example. Not all feeder finger scratches will look the same, depth, width and number can all vary. Could be that these were caused by something else as well, but feeder finger seems most likely. I don't remember if they were still using presses with the linear feeder or rotary at this time, or if the obv die was the anvil. U.S. coins and errors aren't really my thing. GBrad and J P M 1 1 Link to comment Share on other sites More sharing options...
asdfgh Posted September 18, 2022 Share Posted September 18, 2022 I have almost a roll of these J P M 1 Link to comment Share on other sites More sharing options...
GBrad Posted September 18, 2022 Share Posted September 18, 2022 (edited) On 9/16/2022 at 8:13 AM, J P M said: I took a look at the feeder scratches and they are not quite as large as these groves. These are in the die for sure maybe just a extreme example. Hey JP. Just my humble newbie input here and I'm sure I will be corrected if I am wrong..... Feeder finger damage typically creates scratches or noticeable gouges on the reverse die which typically get worse over time as the face of the anvil die is continually scratched by an improperly aligned/functioning feeder finger. In 1992, the mint had not yet dedicated to inverting their dies (meaning the obverse die was the anvil die and the reverse die was the hammer die). The mint eventually, for the most part, switched to inverted dies several years later as well as switching to the German made Schuler press. I am not quite sure exactly what a feed finger design and its nomenclature looked like on the Bliss press which I am fairly certain was used in 1992 to strike your coin. I highly suspect the obverse/hammer die (regarding your coin) momentarily struck a malfunctioning feed finger stuck within the striking chamber while void of a planchet. This caused the damage to the obverse die that was in turn transferred to your coin and all other ensuing coins struck from the same damaged obverse die. There's no doubt the series of raised lines on your coin was caused by die damage. It think is a very cool example though and I like it! 👍 Edited September 18, 2022 by GBrad J P M 1 Link to comment Share on other sites More sharing options...
J P M Posted September 18, 2022 Author Share Posted September 18, 2022 (edited) On 9/18/2022 at 1:54 AM, GBrad said: Hey JP. Just my humble newbie input here and I'm sure I will be corrected if I am wrong..... Feeder finger damage typically creates scratches or noticeable gouges on the reverse die which typically get worse over time as the face of the anvil die is continually scratched by an improperly aligned/functioning feeder finger. In 1992, the mint had not yet dedicated to inverting their dies (meaning the obverse die was the anvil die and the reverse die was the hammer die). The mint eventually, for the most part, switched to inverted dies several years later as well as switching to the German made Schuler press. I am not quite sure exactly what a feed finger design and its nomenclature looked like on the Bliss press which I am fairly certain was used in 1992 to strike your coin. I highly suspect the obverse/hammer die (regarding your coin) momentarily struck a malfunctioning feed finger stuck within the striking chamber while void of a planchet. This caused the damage to the obverse die that was in turn transferred to your coin and all other ensuing coins struck from the same damaged obverse die. There's no doubt the series of raised lines on your coin was caused by die damage. It think is a very cool example though and I like it! 👍 Thanks for the nice info Brad, I tagged it as a die clash feeder finger and put it in the Odd & error tin box Edited September 18, 2022 by J P M GBrad 1 Link to comment Share on other sites More sharing options...