Discussion: Coin Storage: Indian commemorative coin packs

Started by coinArgon, August 22, 2016, 06:18:51 PM

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coinArgon

All,
How do you store the coins from the mint. Is the glue used in the packs safe? Is it better to use Air tire like capsules Tagore the coin?

I like the packs, but am concerned about the long term effects of keeping the coin in the pack.

dheer

Yes the Tagore coins capsule is better but not best.
There are quite a few good capsule all available outside India. They are quite expensive.

The blister packs are not very great... Apart from glue, even the paper is not of archival grade. So if you are only coin collector, get rid of them and put them into long-term pack.
http://coinsofrepublicindia.blogspot.in
A guide on Republic India Coins & Currencies

kansal888

CnArgon

Dheer is right. In addition to poor quality gums and poor quality paper, there is one more point. The transparent plastic sheet is not PVC free. It can harm your coins in long terms.

If you are very much concerned, then please remove the coins and get them slabbed. While it may protect your coins, it may not be a financially prudent thing to do.

Argon is an inert gas. Pls put the coins inside Argon capsules

coinArgon

Since I am relatively new to collecting Proof coins, I am not sure which is the best way to store the coins.
I guess I have to see the coins from say 1980's or 1990's to see the effect of packaging. How do collectors or mints from other countries handle this?

I understand that the resale value of the coins get affected if they are removed and slabbed. I guess it's a choice between preserving the coin vs preserving the financial value.

Yes argon is a good choice for storing :)

dheer

The earlier mint package were not good. Initial few years it was ordinary cardboard and plastic. Totally damaged the coins in long run. Then there was Acrylic case with coins open. The advantage to this was one could easily remove the coin, get them slabbed or put them into good coin capsules. Keep the package away. One could reassemble the package whenever required.

The Blister packs were introduced around 1994 (?) initially by Mumbai Mint and then by Kolkata mint.

I do have some of the older packs, and they are still good. The coins don't show any visible sign of damage. However we should be looking at time frames of 30-40 years. It is also depended on climate, if you are in humid cities [Mumbai, Chennai] ... the coins get damaged faster and putting them in capsules is advised.
http://coinsofrepublicindia.blogspot.in
A guide on Republic India Coins & Currencies

kansal888

Coin Argon

I am yet to see any visible damage to my coins in the blister packs through naked eyes. It is better if you allow the coins to remain inside the original blister packs.  I adopt the following:

(a) Sort the proof sets year wise (say 10-12 proof sets of 2005-2008)
(b) Seal the individual blister packs inside individual zip pouches.
(c) Then put 10-12 such zip pouches inside a larger poly bag and seal its mouth by 2 inch packing tape.
(d) Write the years on top of large poly bag by marker.

The double protection will save your coins from moisture, humidity, dust and fading due to light.

Regards
Sanjay Kansal 

krishna

The biggest enemies of the packaging, which is generally composed of laminated printed paper, Polyethylene terephthalate (PET) for blister and Low density Polyethylene for lamination, are oxygen, moisture and sunlight (UV rays)
The biggest enemies of coins, especially silver are Sulphur, oxygen, moisture and sunlight

Thus better to keep coins sets in a cool, dark, dry place, without any outside air flow, preferably with a desiccant
Do not compress to coin sets in any way, as the glued PET blister will certainly dislocate and it's a headache bringing it back to its original place, without making the tamper evident

Bimat

Can't say about Indian collector coins (in base metal or in silver) but based on my own experience with non-Indian silver collector coins (mostly euro), silver coins tend to start showing toning due to air (which isn't of great quality in most of the Indian cities)... While many do not like toned coins, it does look good in some cases. For example, the French €10 silver collector coin commemorating Taj Mahal from my collection has developed a nice toning over the years and it indeed looks very beautiful because of that.. perhaps better than the non-toned one when I received it!

Aditya
It is our choices...that show what we truly are, far more than our abilities. -J. K. Rowling.