These things are only about a-year-old. I have a feeling the individual who made them, handled them. There seems to be marks where fingers originally held them. I don't know the material around the edges. There's a possibility it's gold trim. But I've never removed them from the case. Possibly due to storing them in humid conditions? I will remedy that from this day forward. They will be stored in near 0% humidity. I'm just wondering if, at this early stage, they can have their discolorations fixed by a professional, and stay in 100% mint condition? Obviously you can't do this with older coin's very well. But this is brand-new discoloration. Possible to salvage before it progresses?
Those coin world slabs are not air (certainly not moisture) tight. So if you store them improperly, they're going to tarnish. But since they are just generic silver rounds, who cares?
My question was whether they could be cleaned. Still looking for an answer to that question. As for everyone's opinion of Bitcoin, one of these coins is now worth $700, regardless of the amount of silver that is contained in it. Here are some interesting links from today in mainstream news: http://www.usatoday.com/story/tech/news/2016/06/24/bitcoin-surges-after-brexit-sinks-pound/86340450/ http://finance.yahoo.com/news/bitco...ency-fears-after-eu-referendum-165050831.html
I wouldn't count on this silver round ever being worth more than its silver content. It is from Casascius (casascius.com), a private supplier. The "tarnish" could be from impurities in the metal itself, the slab, handling prior to or after slabbing, some chemical residue from the gold-plating of the B, or atmospheric conditions. Depending on the cause, it might be easily be removed, but might come back again. The company quit embedding bitcoin codes in these rounds in 2013, so it's just a hunk of silver which is unlikely to become a desirable collectible. Cal
Yes, they can be. As already suggested below. That said, I find the toning rather attractive myself and would try to maintain it as is by utilizing proper storage from this point forward. But that's a chocolate and vanilla choice.
A true Bitcoin might be valued at $700, but the true bitcoin is NOT a physical object, it is just a digital representation. This is a silver round "bitcoin", it is NOT exchangeable for a true Bitcoin. So it is just worth the metal value.
Uhhhh - according to the people who make those specific items, they are loaded with 1 digital bitcoin. Their words, not mine. ฿1 Gold-Plated Fine Silver Casascius Round. This is a 39mm 1oz silver round accented with gold electroplating on the rim and on the Bitcoin logo, loaded with one digital bitcoin.
Uhhh - their latest take..."As of Nov 27, 2013, I suspended sales of items that contain digital bitcoins. Current items for sale do not contain bitcoins."