A guide to foreign silver coins - Coin Talk
Feb 29, 2016 · I got this from a website and condensed it. Its a nice cheat sheat for foreign silver. Austria- Imperial (Cornona and or Krone) Hungary. 1 Cornona/Krone 1901-1913 - 83% Silver. 2 Cornona/Krone 1912,1913 - 83% Silver. 5 Cornona/Krone 1900,1907-1909 - …
What's does the average coin shop pay a walkin for silver
Apr 3, 2016 · Paul M. Well-Known Member. There is no average coin shop, and what shops pay depends on what form the silver is in. Grandma's silverware is going to get a different price from vintage rounds/bars or ASEs or low grade 90% silver coins. Unless there's some additional collectible value, any shop is going to pay a little back of spot and sell for a ...
World silver crown-size type coin collectors? - Coin Talk
Feb 6, 2019 · I think my criteria are actually about the same as yours or a bit broader. For instance, a 0.900 silver 12.5g coin might be only 30-31 mm (e.g., US 1/2 dollar), and a 0.925 silver 11.6g coin might be only 29-30 mm (e.g., Canada 50 cents). capthank and NovembersDoom6 like this.
Blue toning on silver coin...natural? - Coin Talk
Jun 29, 2018 · With reference to the 1914 BWA coin, I have seen this type of coloring on silver coins that have been cleaned/polished and have then re-toned after the procedure. On the obverse behind the king's head, there appear to be polishing hairlines from rubbing, about 15 degrees off the vertical, and if this coin was to be dipped, these hairlines would ...
How Much Are These 60% Casino .999 Silver Tokens Worth?
Jun 20, 2020 · They are called "Silver Strikes". Those produced prior to 2006 contained 6/10ths of an ounce of .999 fine silver. Beginning in 2006, they were reduced to 5/10ths of an ounce of .999 fine silver. Value is normally determined by the price of silver. ~ Chris. Eric the Red, bruthajoe, fretboard and 2 others like this.
Cleaning Coins with a Ultrasonic Cleaner - Coin Talk
Jan 6, 2016 · Santinidollar said: ↑. If an ultrasonic can knock tartar off your teeth I am sure that it can do more than a bit of damage to coins. Ultrasonic cleaners work using collapsing cavitation bubbles in liquid. They're tiny, but the bubble collapse generates 5000 degrees Centigrade and a velocity of 500mph.
Which coin and currency storage supplies are safe? - Coin Talk
May 17, 2003 · The Air-Tite system is relatively safe for long-term storage. The size is nonstandard, with the 2-3/4 inch by 2-3/4 inch display cards being larger than the 2 inch by 2 inch size of most other holders. Air-Tites are considerably more expensive than most other holders, but they may be worth it.
90% Isopropyl Alcohol for Cleaning Coins - Coin Talk
Dec 18, 2015 · I use 90% alcohol to remove tape glue. It is the only thing that works if someone wraps coins in packing tape. Best to ship them back when they do that but sometimes it don't matter when the coins were bought at melt. buddy16cat, Dec 20, 2015.
World silver coins and specific gravity test results - Coin Talk
Oct 14, 2015 · You can do the math yourself, or find the source. GDJMSP said: ↑. the specific gravity of .999 silver is 10.49, while .500 silver is 9.68 which equals a 7.8% difference. But a 50% difference in the fineness of the metal. So your 6.6% difference in specific gravity is HUGE when it comes to the fineness of the metal.
Clouding on Proof Silver Coins - Coin Talk
Feb 3, 2018 · iPen Well-Known Member. Here's an article by Walter Breen back in 1977 that talks about the procedure for tarnish removal for proofs - not sure how that translates for cloudy coins. Breen mentions (clear or cloudy) ammonia followed by MEK for nickels and gold coins, and typically MEK by itself for silver proof coins.