jf_midwst

Thanks for all the help. I found a few threads that showed similar coins and were likely acid treated. The measurements are nonsense. I think Walter White was helping his students with this project. I should have taken the 20 bucks a coin store offered me when I was a teen. This one is going back in the junk box.

So I just got a decent scale (my homebrew hops measurements will be crazy accurate!). Weight: 2.32grams. That's light by over 3.35 grams. I think each cladding is in the ballpark of 1 gram. Diameter: 23.3. About 1mm undersized. Half has a very narrow rim and none on the other half but the edge reed is well defined/uniform all around. Thickness: 1.0 mm (less than a dime) I'm including a picture of the reed where the rim is missing (where "quarter dollar" is clipped). This is way over my head so I won't even try to speculate how this got this way but I personally don't think it's environmental and every acid washed coin I see online looks like it's having a much worse day. I wanted to share an interesting article regarding the Denver Mint in 1971 I found while searching around. Article quote : "In 1971, the Denver Mint produced a number of puzzling off-metal and wrong planchet errors". https://www.coinworld.com/news/us-coins/orphaned-washington-pair-is-a-real-mystery.html Just noticed a botched the coin year in the title of this thread. Sorry! I'm not sure I can fix it.

My dealer didn't have anyone in the store that could evaluate it other than to say it seemed really thin. They pointed me towards someone that will be at a show in a few weeks that's supposed to be a subject expert. I find it odd that the edge reed is as well defined as a normal quarter if it got roached by acid and the surface looks as smooth and reflective a normal penny. Very strange. I owe you guys a weight - sorry I didn't provide it, should have it tomorrow. I'm learning a lot and hopefully this thread will help others in the future!

Thanks for taking the time to provide feedback. Very informative. I still made over $100 dollars (by not send it in)! There's a coin show coming up later this year near me and I have a contact name from my dealer so I'll get one final input to put this to rest but not expecting good news. It's interesting that it has no pitting, no signs of cladding and the edge reed on the copper is still intact. I thought the acid would attack the copper before the cladding.

I recently rediscovered this quarter in my junk "box". I found it over 40 years ago as a teen (I think from a lawn job) and stashed it away not knowing what to do with it (no Internet!). It appears to be missing the cladding on both sides. I recently tried to get a coin store help me send it in for grading but ironically they wouldn't help unless a subject expert felt it was authentic (apparently too many disappointed customers). My questions are 1. Any indications it's not authentic? I'm asking so I don't waste my time submitting it for grading. It looks to me like the strike on the reverse side is clipped (diameter is about 1mm undersized). 2. I'm getting ahead of myself but if it could be authentic then I want to send it into NGC myself for grading but want to verify I'm picking the right grading options. Are these appropriate primary options? (Tier: Modern, Add-on: Mint Error) and should I order "NCS Modern Conservation" to stabilize coin surface? Thanks for taking the time to provide feedback. I'm excited to get to the bottom of this personal 40yr barn find and will keep everyone posted on the status.