Casascius hologram issue

[dumbchump]

Anyone else seeing little dots on the back of a silver 1.0 hologram???  I've attached 3 pics of the coin.  

It has been in my safe for a long time and I pulled it out to take pics to auction it on here....but then noticed the dots.  They definitely were not on there when I purchased it or received it back from ANACS.

Thoughts anyone?!?

[1715121995]

1715121995

[1715121995]

1715121995

[1715121995]

1715121995

[1715121995]

1715121995

[1715121995]

1715121995

[miffman]

Hmm...I wonder if it has to do with the adhesive of the hologram. If anything, I'm sure it won't loosen the hologram.

[Zepher]

Edit: can't get it to upload.
Please upload all pics to Imgur and set 'direct link'. Thanks

2nd edit to Hellot: I haven't had it happen to any of mine thankfully, slabbed and UG. Would be interested to know as well.

[Hellot]

I've noticed this on a few of my coins but not as much as yours.  No idea what caused it but would love it if Mike(Casascius) could chime in with his ideas.

[coin@coin]

Could you actually circle the area where you noticed the dots @dumbchump?

[dumbchump]

Could you actually circle the area where you noticed the dots @dumbchump?

Added another pic.  The circled area is just what comes up the best in the pic....but the back of the hologram has an even distribution of those dots.

[Zepher]

Could you actually circle the area where you noticed the dots @dumbchump?

It's actually quite obvious on the first and second picture if you zoom in.
Wonder what causes that? humidity?
Location OP? US?

[dumbchump]

Could you actually circle the area where you noticed the dots @dumbchump?

It's actually quite obvious on the first and second picture if you zoom in.
Wonder what causes that? humidity?
Location OP? US?

US - midwest, in a safe most of the time....humidity controlled a/c the rest...it's odd and disappointing to say the least.

[coin@coin]

Oh yeah I see them now. 

[CanaryInTheMine]

Some oxidation or a reaction over time perhaps?
I'd want to examine it under high magnification

[Xprim777]

Are you sure it's the hologram and not the capsule or the plastic around (which seems to have some dots too ) ? Never seen that before 

[Zepher]

Are you sure it's the hologram and not the capsule or the plastic around (which seems to have some dots too ) ? Never seen that before  

Definitely seems to be the hologram. Here's a pic I've just taken of the exact same coin that I have, same year, same grade.
Not the best camera, but you can see the difference.

[Blazed]

Are you sure it's the hologram and not the capsule or the plastic around (which seems to have some dots too ) ? Never seen that before 

It is the coin for sure. I have several that also have those dots all over them.

[Xprim777]

Are you sure it's the hologram and not the capsule or the plastic around (which seems to have some dots too ) ? Never seen that before 

It is the coin for sure. I have several that also have those dots all over them.

Ok, I didn't know this was possible 

[CanaryInTheMine]

Are you sure it's the hologram and not the capsule or the plastic around (which seems to have some dots too ) ? Never seen that before 

It is the coin for sure. I have several that also have those dots all over them.

If you ever peel it, I'd love to analyze the residue that caused it..

[OgNasty]

If you look at the pics, you can see a similar dot pattern on the actual slab in the clear spots...  I'm wondering if this is some sort of reaction, or possibly residue from the slab getting on the coin hologram over time.  Maybe another downside to having coins graded?

[monkeynuts]

I have also seen this on a few

I have only seen on a slabbed coin. And only with a series 3 holo silver coin. I would love to hear from anyone seeing this on none slabbed coins, or none silver coins

I cracked one of those slabs for inspection. It would appear that once present, that it's permanent, ie it wouldn't wipe off.

Would love to hear an explaination

[coin@coin]

I have also seen this on a few

I have only seen on a slabbed coin. And only with a series 3 holo silver coin. I would love to hear from anyone seeing this on none slabbed coins, or none silver coins

I cracked one of those slabs for inspection. It would appear that once present, that it's permanent, ie it wouldn't wipe off.

Would love to hear an explaination

How did u crack it? With pliers?

Also is it ANACS slabbed coins only?

Maybe ANACS adds something to the slab before putting it together?

[OgNasty]

How did u crack it? With pliers?

I wouldn't mind seeing a cracking video.

[owlcatz]

How did u crack it? With pliers?

I wouldn't mind seeing a cracking video.

Blazed posted this https://bitcointalk.org/index.php?topic=1337933.msg13663930#msg13663930 .. Not sure if he ever posted the video though.