Error Other | 1986P-LC-Strange Columns

[11997755]

I have never seen this before and guessing one of you all have. It looks like tooling marks but there not where I usually see them. I've heard of "column extensions". Is that what this is ? Thank you for your help.


1986P-LC_ColumnsObverse.jpg1986P-LC_ColumnsFarRight.jpg1986P-LC_ColumnsRight.jpg1986P-LC_ColumnsMiddle.jpg1986P-LC_Columns_ReverseClose.jpg1986P-LC_Columns_Reverse.jpg

[makecents]

That is very peculair looking!! Looks to be abbrasions of some sort but odd how it stops under the columns and stops at the bays. I look forward to the pros take on this one. Nice pics!

[VAB2013]

Cool find! You are correct, those are die abrasions from removing a die clash and I've never seen them at the lower part of the Memorial either! I can see a little bit of a die clash in bay 4. I think what you are referring to as "columns extensions" are die extensions, which would be like trails or wavy steps.

Here's the definition of die extensions from our glossary.

Design Extension Anomaly: An unintentional protraction of design elements, such as trails, dimples, and wavy steps. These are believed to happen to the working die during the hubbing process, and have an unknown cause.

[11997755]

I think your on to something there VAB2013 with the clash. Maybe too much metal was removed from the bays and they had to cut the columns deeper. If that's the case, they cut a little too far and got into the memorial base. Thank you for the definition of Design Extension Anomaly..That is what I was referring too.

[VAB2013]

I think your on to something there VAB2013 with the clash. Maybe too much metal was removed from the bays and they had to cut the columns deeper. If that's the case, they cut a little too far and got into the memorial base. Thank you for the definition of Design Extension Anomaly..That is what I was referring too.

Thank you, and you are welcome! I think it's odd how the die abrasion did not affect the columns, but did affect the memorial base directly below. It would seem like those two areas would have similar thicknesses on the die but like you said the mint worker was probably working too hard to remove that die clash!

[GrumpyEd]

Design Extension Anomaly: An unintentional protraction of design elements, such as trails, dimples, and wavy steps. These are believed to happen to the working die during the hubbing process, and have an unknown cause.

The difference is that trails are probably always made when the die is made or prepared before it is used but this die has lines that were made while it was being used.


These are severe polishing lines, my guess is maybe from removing a clash or the die might have been badly clogged and they got brutal cleaning the clog out. It looks like the polishing lines followed the columns or they were polishing in the columns to scrape the clog out of the die.

[Petespockets55]

Mint worker must have used a wire brush to declog/"carefully polish" the die.

[11997755]

Mint worker must have used a wire brush to declog/"carefully polish" the die.

Must have been done right after there lunch hour.

[mustbebob]

This is definitely over zealous die abrading. Good call folks. Is is pretty rare when it gets this deep. I don't see a lot of indications of a wavy step die, but based on the location of the abrasions, that very well may have been what they were after. Either way, we have all seen more pronounced clash marks than what is identifiable on this coin. Maybe there was something else? I would have loved to see this coin in BU. I'll bet it was quite stunning.

[jfines69]

Cool looking... The mint worker really did a number on that one... Must have fallen asleep while polishing Always sleepy after a good lunch

[11997755]

I sent Mike Diamond a PM to get his opinion on what was going on with this coin.

He asked that I send him the coin so he could look at it in hand and do a possible write-up in Coin World.

It's getting exciting. I will keep you all posted.

Hopefully, you will be able to read the attribution in Coin World.

[VAB2013]

I sent Mike Diamond a PM to get his opinion on what was going on with this coin.

He asked that I send him the coin so he could look at it in hand and do a possible write-up in Coin World.

It's getting exciting. I will keep you all posted.

Hopefully, you will be able to read the attribution in Coin World.

Thank you for the exciting news! That's so cool that Mr. Diamond is going to look this coin over and possibly write an article about it! Thumbs up!!!

[GrumpyEd]

That's cool!

Update us when he gives his opinion.

[Petespockets55]

Congrats on the in hand exam by Mike. That will be interesting for sure.

[jfines69]

Cool... I hope it is more than what we think... An in hand look by one of the pros is always best!!!