1988-P Quarter--"Fin" Resulting from Misaligned Die, Partial Collar, or Something Else? 1 1

[Sandon]

   @Errorists' topic 2020 S Rockefeller National Park Error Quarter - US, World, and Ancient Coins - NGC Coin Collectors Chat Boards inspired me to locate this anomalous 1988-P quarter that I found in circulation some years (probably several decades) ago:

    The first (obverse) photo shows a thickened and split rim on the right side. The rim narrows and ultimately vanishes at the left side. The second photo shows a normal reverse, some common "strike doubling" excepted. The third photo, taken from the left side of the coin relative to the obverse, shows that the outer portion of the thickened right side of the rim forms a significant "fin" that is raised well above the surface of the rest of the coin. The reeded edge is complete on both the portions of the coin without and with the "fin", except for some distortion in a small area adjacent to the reverse at the center of the portion of the edge that includes the "fin" (fourth photo). None of the edge is plain.

   This coin bears a significant resemblance to the 2020-S proof Marsh-Billings-Rockefeller quarter shown in Errorists' topic, except on that coin the "fin" has fractured, with part of it hanging loose, and the portion of the rim opposite the fin is significantly narrower than normal but has not vanished. 

   I think that both of these coins were struck from significantly misaligned (tilted) obverse dies that caused a "gap" between the edge of the die and the collar, resulting in metal being allowed to flow upward against the collar during striking and creating the "fin". This tilt also explains the missing or narrowed portions of the rim on the side of the obverse opposite the fin, as the tilt caused part or all of this edge of the die to pass beyond the edge of the planchet.  Errorists believes that the correct explanation is a "partial collar", but my understanding is that a coin struck in a reeded collar that has slipped or tilted should show a blank (non-reeded) area on part or all of the coin's edge. 

   What do you think?

 

[Errorists]

On 2/27/2024 at 11:24 PM, Sandon said:

   @Errorists' topic 2020 S Rockefeller National Park Error Quarter - US, World, and Ancient Coins - NGC Coin Collectors Chat Boards inspired me to locate this anomalous 1988-P quarter that I found in circulation some years (probably several decades) ago:

    The first (obverse) photo shows a thickened and split rim on the right side. The rim narrows and ultimately vanishes at the left side. The second photo shows a normal reverse, some common "strike doubling" excepted. The third photo, taken from the left side of the coin relative to the obverse, shows that the outer portion of the thickened right side of the rim forms a significant "fin" that is raised well above the surface of the rest of the coin. The reeded edge is complete on both the portions of the coin without and with the "fin", except for some distortion in a small area adjacent to the reverse at the center of the portion of the edge that includes the "fin" (fourth photo). None of the edge is plain.

   This coin bears a significant resemblance to the 2020-S proof Marsh-Billings-Rockefeller quarter shown in Errorists' topic, except on that coin the "fin" has fractured, with part of it hanging loose, and the portion of the rim opposite the fin is significantly narrower than normal but has not vanished. 

   I think that both of these coins were struck from significantly misaligned (tilted) obverse dies that caused a "gap" between the edge of the die and the collar, resulting in metal being allowed to flow upward against the collar during striking and creating the "fin". This tilt also explains the missing or narrowed portions of the rim on the side of the obverse opposite the fin, as the tilt caused part or all of this edge of the die to pass beyond the edge of the planchet.  Errorists believes that the correct explanation is a "partial collar", but my understanding is that a coin struck in a reeded collar that has slipped or tilted should show a blank (non-reeded) area on part or all of the coin's edge. 

   What do you think?

 

It's funny. Over the years on eBay I've seen more extreme MAD errors without the fin.. 

[sgen1313]

On 2/28/2024 at 12:24 PM, Sandon said:

   @Errorists' topic 2020 S Rockefeller National Park Error Quarter - US, World, and Ancient Coins - NGC Coin Collectors Chat Boards inspired me to locate this anomalous 1988-P quarter that I found in circulation some years (probably several decades) ago:

    The first (obverse) photo shows a thickened and split rim on the right side. The rim narrows and ultimately vanishes at the left side. The second photo shows a normal reverse, some common "strike doubling" excepted. The third photo, taken from the left side of the coin relative to the obverse, shows that the outer portion of the thickened right side of the rim forms a significant "fin" that is raised well above the surface of the rest of the coin. The reeded edge is complete on both the portions of the coin without and with the "fin", except for some distortion in a small area adjacent to the reverse at the center of the portion of the edge that includes the "fin" (fourth photo). None of the edge is plain.

   This coin bears a significant resemblance to the 2020-S proof Marsh-Billings-Rockefeller quarter shown in Errorists' topic, except on that coin the "fin" has fractured, with part of it hanging loose, and the portion of the rim opposite the fin is significantly narrower than normal but has not vanished. 

   I think that both of these coins were struck from significantly misaligned (tilted) obverse dies that caused a "gap" between the edge of the die and the collar, resulting in metal being allowed to flow upward against the collar during striking and creating the "fin". This tilt also explains the missing or narrowed portions of the rim on the side of the obverse opposite the fin, as the tilt caused part or all of this edge of the die to pass beyond the edge of the planchet.  Errorists believes that the correct explanation is a "partial collar", but my understanding is that a coin struck in a reeded collar that has slipped or tilted should show a blank (non-reeded) area on part or all of the coin's edge. 

   What do you think? Candy Crush

 

 This coin bears a significant resemblance to the 2020-S proof Marsh-Billings-Rockefeller quarter shown in Errorists' topic.

Edited March 18 by sgen1313

[Errorists]

On 3/18/2024 at 3:21 AM, sgen1313 said:

 This coin bears a significant resemblance to the 2020-S proof Marsh-Billings-Rockefeller quarter shown in Errorists' topic.

I saw that. It sure does..