ASE window sill toning

On a lark I put a couple of blast-white ASE's in envelopes and on a window sill. Here is one after three years and then five years. Also an older 1991 after five years. (I neglected to get pix before today.)
Well that was fun. Now what? Keep going? Slab them? Sell as is? Put them in flips in a dark safe for 10 years?
Nothing really valuable here. Just a little experiment. I don't chase these coins. They're just bullion, but kinda pretty.
Lance.
2019:
2021:
Today, sorry no "before":
Coin Photography Services / Everyman Registry set / BHNC #213
22
Comments
I would put them in airtites i like them the way they are!!
Careful there my friend! They'll label you as Dr. Lance, the SAE Doc'
“We are only their care-takers,” he posed, “if we take good care of them, then centuries from now they may still be here … ”
Todd - BHNC #242
I think they all look great, .999 sure can produce some beautiful colors.
Wonderful colors I like
2016 is stunning!
The 1991 is a bit too thick for my liking.
I'd slab the 2016!
peacockcoins
Cool experiment. As opposed to much I see in the world of ASE color, these look really nice. I love yellow centers and electric blue rims.
Silver that is pure 999 fine is more reactive than coin silver that is 900 fine so these results are not surprising. It would be interesting to see if PCGS will slab them.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
Imagine what 5 years on a window sill at a Taco Bell would do.
Keeper of the VAM Catalog • Professional Coin Imaging • Prime Number Set • World Coins in Early America • British Trade Dollars • Variety Attribution
Time to profit, Lance!
"Got a flaming heart, can't get my fill"
Or in a Taco Bell men's room.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
I wonder how much was the sun and how much was the envelope?
Interesting. Wonder if you could see the 'imperfection' dots on the 2016 reverse when blast white?
Nice!
U.S. Type Set
Keeper of the VAM Catalog • Professional Coin Imaging • Prime Number Set • World Coins in Early America • British Trade Dollars • Variety Attribution
Thanks for the feedback fellas.
It will be fun to see what PCGS says. I submitted both today. I'll update with results in a couple of months.
Lance.
My God, so you don't dust your house either?
"When they can't find anything wrong with you, they create it!"
Those 'blotches' on the reverse of the 2016 look like what was milk spots, now covered by tarnish. Cheers, RickO
As a follow-up, I just learned PCGS graded each MS68.
I have no idea what these are worth (anyone?) and whether it was smart to have them graded. But still, kinda fun.
Lance.
I’m not surprised one bit that both graded…….and they’re both nice looking.
Value is not a whole lot of money but maybe $90-$120.
.
I have a reverse proof that’s been sitting in my coin cabinet shelf and it’s starting to tone.
No Sun, just sitting in the coin cabinet on the felt lined tray/shelf.
I’ll post it soon here
.
CoinsAreFun Toned Silver Eagle Proof Album
.
Gallery Mint Museum, Ron Landis& Joe Rust, The beginnings of the Golden Dollar
.
More CoinsAreFun Pictorials NGC
Awesome, dude. 68's? That's a grade that will surely be appreciated by any future buyer! Congratulations

Back awhile, at a local show, I had 3 dazzlers, similar to your's. I sold them for $650.
1995
2005
1997
The last one also had a grade of ms 68.
Good Luck!
"Jesus died for you and for me, Thank you,Jesus"!!!
--- If it should happen I die and leave this world and you want to remember me. Please only remember my opening Sig Line.Yellow envelope or white?
I have always wondered, Does the process arrest? Does a nice coin stay nice, or will the process continue to all black? Can it be reversed (acetone)? Does slabbing "stabilize" the colors? What is the MOST toned coin you've seen? If you spend big bucks for a nice coin, how certain can you be that it will stay nice and for how long?
Thankx
(l8-)>>
Thought about doing similar with those 5oz National Parks pucks.
I don't think this has been done(submitted) yet.......should be a super cool look to the right design
.
CoinsAreFun Toned Silver Eagle Proof Album
.
Gallery Mint Museum, Ron Landis& Joe Rust, The beginnings of the Golden Dollar
.
More CoinsAreFun Pictorials NGC
I haven't had time to find the RP silver eagle but I found this image I took of the KOCT overstruck on a ASE that's in my coin cabinet since I purchased it. Not much toning yet, but still pretty neat
.



.
CoinsAreFun Toned Silver Eagle Proof Album
.
Gallery Mint Museum, Ron Landis& Joe Rust, The beginnings of the Golden Dollar
.
More CoinsAreFun Pictorials NGC
You're going to need a bigger window sill.
@ricko can fix these for you!
Here are the OP coins slabbed.
The coins sat in old Kraft envelopes. Not sure much sulfer remained in the paper as the envelopes were several decades old and most leached-out, I imagine.
@edgar, The toning progression stops, for the most part, once you remove them from the environment. Acetone will have no effect. The toning/tarnish is not organic. Slabbing surely helps arrest further toning but perhaps not 100%.
Lance.
thanks! Now I could own those slabs!
(l8-)>>