Please check your Reverse Proof SE for this unusual Characteristic.

Insider2

Please check your SE to see if they have this "patch-like" characteristic. I don't recall seeing this on any Proof SE before. What do you think caused it? It looks like an outward flow. I have some ideas.

abcde12345

Nah

1630Boston

Interesting, I wish I had one to check though

ricko

Is this a general request for all ASE's?? Or just the new ERP coin? Cheers, RickO

Insider2

The 30K mintage new issue.

jmlanzaf

If you are referring to the texture, that's the Enhanced part. This is not a reverse proof, iit's an enhanced reverse proof

Insider2

@jmlanzaf said:
If you are referring to the texture, that's the Enhanced part. This is not a reverse proof, iit's an enhanced reverse proof

The field of this coin is textured while the relief is mirror-like. As you posted and I wrote above, this is one of the 30K "Enhanced Reverse Proofs."

Look closer. I have not seen the tiny patches on the relief and at the wing tips on a silver eagle WITH ANY FINISH. What do you think caused them?

jmlanzaf

@Insider2 said:

@jmlanzaf said:
If you are referring to the texture, that's the Enhanced part. This is not a reverse proof, iit's an enhanced reverse proof

The field of this coin is textured while the relief is mirror-like. As you posted and I wrote above, this is one of the 30K "Enhanced Reverse Proofs."

Look closer. I have not seen the tiny patches on the relief and at the wing tips on a silver eagle WITH ANY FINISH. What do you think caused them?

Oh, THAT! LOL. It wasn't so obvious on my phone. I have no idea what that is.

TommyType

Kind of wonder if whatever process creates the "enhanced finish" is bleeding over somewhat into the devices?

Insider2

First thing is to find other examples.

Hemispherical

69 vs 70?

I know, the graders do not magnify to that level.

Posting so I can come back to this thread.

Insider2

@Hemispherical said:
69 vs 70?

I know, the graders do not magnify to that level.

Posting so I can come back to this thread.

This can be seen with a hand lens. It is an original Mint issues coin so these marks will not lower its grade.

Intueor

First, I have no reason to doubt that this piece is genuine nor am I alluding that it may have been cast.
I am just making an observation from past experience with casting metals.
I have seen this effect before when cast metal sticks to the mold.
It occurs when the molten metal is not properly cooled before the mold is separated.
This effect was common when, as a kid, I made my own lead fishing sinkers. (inhaling all those lead oxide fumes.)
Since heat or molds are not really a factor during the minting process, the aberration is interesting.
However, it does look like metal "cresting" caused by the sudden release of the working die.

Oldhoopster

How does the mint create the finish on the fields of the dies for the reverse proofs? I can't remember if it's a chemical etch or physical grit blast.

derryb

"Patches" variety

Hemispherical

@Insider2 said:

@Hemispherical said:
69 vs 70?

I know, the graders do not magnify to that level.

Posting so I can come back to this thread.

This can be seen with a hand lens. It is an original Mint issues coin so these marks will not lower its grade.

Good to know.

@Oldhoopster said:
How does the mint create the finish on the fields of the dies for the reverse proofs? I can't remember if it's a chemical etch or physical grit blast.

Doesn’t the US Mint use lasers to frost now?

blitzdude

Looks like PMD to me, maybe give it a market acceptable MS67.

On a side note I am impressed that you even noticed during the 4 second glance with no magnification. Congrats!

BuffaloIronTail

@Insider2 said:
First thing is to find other examples.

I think it's some form of Micro-Cracking.

Pete

PerryHall

Since it's flowing outward toward the rim it looks like die erosion, These coins are struck multiple times under high pressure so minor die erosion is well within the realm of being a possibility.

BigA

Eagle psoriasis.... try a lotion

Edit: clear skin (?) on my three

jmlanzaf

@Insider2 said:

@jmlanzaf said:
If you are referring to the texture, that's the Enhanced part. This is not a reverse proof, iit's an enhanced reverse proof

The field of this coin is textured while the relief is mirror-like. As you posted and I wrote above, this is one of the 30K "Enhanced Reverse Proofs."

Look closer. I have not seen the tiny patches on the relief and at the wing tips on a silver eagle WITH ANY FINISH. What do you think caused them?

Oh, THAT! LOL. It wasn't so obvious on my phone. I have no idea what that is.> @Oldhoopster said:

How does the mint create the finish on the fields of the dies for the reverse proofs? I can't remember if it's a chemical etch or physical grit blast.

laser ablation

Kkathyl

Insider2

I don't see the "flaking" characteristic on this coin.

derryb

@Insider2 said:
I don't see the "flaking" characteristic on this coin.

believe there is some confusion as whether you are referring to the fields or the details devices. I suspect you are referring the the details devices.

Insider2

@derryb said:

@Insider2 said:
I don't see the "flaking" characteristic on this coin.

believe there is some confusion as whether you are referring to the fields or the details. I suspect you are referring the the details.

Check out the images in the OP. The relief of the coin has a very unusual (first I've seen on any SE) fish scale scale characteristic.

Texast

If you are talking About the tiny frosty lines and spots I would think it was the extra fine detail Laser used to create the frosted fields may have gone out of the fields and engraved super small lines that tailed off onto the shiny areas.

Just an observation after enlarging the picture and having seen how small lasers draw lines.

baddogss

@derryb said:

@Insider2 said:
I don't see the "flaking" characteristic on this coin.

believe there is some confusion as whether you are referring to the fields or the details. I suspect you are referring the the details.

Devices ... not details