RWB

Scruffy coin. No better than Unc-62 assuming one has cataracts.

Change in numismatics (no pun intended) is extremely slow.

This was common in the Standing Liberty quarter series.It was noted by engraver Sinnock who said Liberty's head and torso "showed through 'spongily' on coin reverse."

The 2005 quarter date and this being 2021, and the squiggly patterns all point to this being emergence of the wily "16-year locust" (or cicadas). These are supposed to appear every 17 years but the wily brood go to sleep a year later so they can party while the others get eaten. The squiggly patterns show that the mint was infested in 2005 and the insects recently dug their way out of the clad coin to spread another generation.

The chances of avoiding spots on coins increases if it is left in the original plastic holder. No TPG publishes their clean room certification - if any have it - but I really doubt any would meet ISO 8. If you want to encapsulate coins, I suspect ISO 6 would be required - possibly ISO 5 if tests show contamination on real-world samples in the immediate handling/assembly/packaging areas. Check here for clean room standards. https://www.americancleanrooms.com/cleanroom-classifications/#iso

Yep. Plus it was 70 years ago. Things change. Admittedly, the Mint has rarely been open and forthcoming regarding errors in production. Back when gold and silver coins circulated wrong alloy or defective coins were recycled and returned the bullion. That still happens but so little gets out, and the bookkeeping is different so there's little way for the outside world to become aware of problems. Also, consider BEP's problem with $100 bills a couple of years ago.

Incidental spots and discoloration/tarnish are normal for circulation coins. But pieces intended as "perfect" should not have them - at anytime during their collecting journey. This is especially true for NCLT/bullion proofs and other such for-profit products. The highly polished mirror surfaces only make spotting more distracting.

Can you provide more information and maybe some photos?

It would take considerable pressure to make the sharp, deep impressions. Likely home workshop fun.

The dark spots are caused by airborne contamination. It can occur any time the coin is exposed to air during production or when removed for its original container for repackaging. Once visible, there is no remedial action. The damage is not reversible.

The sad part is that the USSS, Customs, and FBI are so swamped with fake merchandise and drugs from China, Chili and other places that the dollar value of counterfeit coins does not justify the resources to put the importers and perpetrators of counterfeits away for 20-years.

False. Look at the US Code. If it looks like a coin or performs like a coin and not produced by the US Mint, it is a counterfeit -- UNLESS marked COPY. The illustrated piece claims to be One Dollar and United States of America. No excuses no lies. The claims of the perpetrator are not supported by law or legal practice. By the perpetrator's warped, self-serving "logic" anyone could stamp off Washington quarters looking just like the originals and spend them with impunity. Same for slugs or tokens that operate vending machines.

It's a counterfeit. Ask you lawyer.

You very likely receive more pleasure from your collection than any deep-pocket, sticker-infused person. Good for you!

Businesses make their decisions based on present and anticipated outcomes. Consumer's make similar decisions, but each entity is an individual. Capitalist markets.

Ahhh, yes. Those nonexistent critters crossed between a Jabberwocky and a Scalawag.

I think the OP is referring to the right side of the olive branch near the fascias, and lower portion of the axe blade. That was the first thing the jumped out to me.

The kind of mechanical or strike doubling the OP describes is well known among specialists. It has no extra value, but certainly gives the initial impression of a dramatically doubled profile. I'll consider adding something about this to the Guide Book for Peace Dollars next time around.

Why did it take so long to recognize them? The little oval sticker is easy to see and should be recognizable from at least 10 meters away.

What coin collectors like to call "errors" are manufacturing defects to the Mint Bureau. They have quality control systems to identify, assess and remediate defective products (coins) just as any other manufacturer. The QA is split into several segments: Production defect reduction; Defective product interdiction; and Deliberate defect creation. As Dir Moy once commented to Bill Fivaz (Cherrypicker's Guide, etc.) "My goal is to eliminate all the [error] coins you collect."

So....you're giving the IT system a vaccine jab....

Unc-62 -- and that is only because the reverse is comparatively free of marks.

Really nice work!

Lem E - Did your coin earn frequent flyer miles?

Good! Do they have more you could get? Who knows - migth be a bunch of them in the store's cash. Also check where they got their coins....