PCGS stands for Professional Coin Grading Service, one of the most popular commercial services that grades coins. See www.pgcs.com for more info.
Try Slab-Renew. It is available on eBay and coin shops.
Silver is non-magnetic.
It's a Half Dollar NOT a dollar coin. The coin weighs 12.50 grams and contains .36169oz of pure silver.
Divide the mass by the volume to calculate its density. If its density isn't the same as an equal amount of pure silver, the coin has some other metal in it.The density test can be fooled if the coin was adulterated with other metals that average out to the same density as silver, however.
Since the best conductor of heat is silver, it would be the silver eagle which is made out of pure silver.
Retail list for this coin is $26.00
Every coin, which is sent to PCGS receives a grade number. This numbering system simply identifies the type of coin by date, denomination, variety, and designation. In othe words, these numbers basially serve as ID tags for every single coin sent to PCGS.
Send it in to a coin grading service like PCGS.
The most valuable coin to sell at auction is the 1794 silver plugged dollar graded SP66 by PCGS. However,the most valuable coin is the 1849 $20 gold piece . It is unique and has an estimated value of $15,000,000.
The PCGS is the Professional Coin Grading Service. PCGS pricing guides can be found online on the PSGC website as well as sites like Coinnews and Davidhall.
Coins are certified by NGC and PCGS. A coin shop can help you or search on the internet. It costs something to get a coin certified.
It's worth $70, according to PCGS.
According to the PCGS Price Guide, which is available free online, Its value is $900.00.
You can't unless you pay the $20+ to send your coin to NGC/PCGs even under magnification the ordinary person cannot tell the difference between a pf69 and pf70 coin. Of course, it is easy to tell if your coin is uncirculated or proof, a proof silver eagle will have very shiny, mirror like fields that are easy to see yourself in. An uncirculated silver eagle will be shiny, but won't be mirror like. Also, the raised part of the coin will look frosted on a proof coin but not on an uncirculated coin.
If that is a private mint coin, it is probably the weight of the coin.
Try Slab-Renew. It is available on eBay and coin shops.
You can send it to a 3rd party grading service like NGC or PCGS.