I have never seen this before but I got 2 in the last 2 days. I opened the roll of quarters and thought I had either a silver or a foreign. When I saw the OB I thought it was probably a proof coin but was surprised when I saw the P and not an S. I have this coin and a Wyoming quarter. Can anyone give me some info on if this is anything substantial? Thanks!
Silver Quarter -> how to ID When a quarter which is expected to be cupronickel clad is found without a visible copper core, when viewed from the edge, the question becomes “Is it silver?” A few 1965 silver quarters do exist, but are quite rare: https://www.coinworld.com/news/prec...steve-roach-numismatics-collecting-hobby.html A 1970-D Silver Clad Quarter also exists with the copper core not visible on the edge. https://coins.ha.com/itm/errors/197...eaned-ngc-details-xf-breen-4457/a/1231-3499.s Most likely the found quarter has either been plated as a novelty item after it left the mint, or a dull punch has pulled the cupronickel cladding over the edge while punching blanks from the coil. The weight of a Silver Clad Quarter, adjusted for tolerance, is too close to the weight of a Nickel Clad Quarter, adjusted for tolerance, to identify the type of cladding. Quarter 1947-1964 = 6.250 g +/- 0.194 g (900 Ag 100 Cu) Weight of Clad quarter 1965 – to present = 5.670 g +/- 0.227 g (75 Cu, 25 Ni on pure Cu) (1976 = 5.750 g +/- 0.200 g - 40% silver clad) A specific gravity test can tell, but it is difficult to run one accurately. Specific Gravity Test. 90% Silver = SG 10.34; 40% Silver = SG 9.53 Cupro Nickel clad = SG 8.92 Copper Cent = SG 8.83; Zinc Cent = SG 7.17; Steel cent = 7.7 Here are instructions about how to perform a specific gravity test: http://lincolncentsonline.com/Copper Or Zinc.html Another alternative to determine metal content is via an XRF Scan.
It's definitely not silver since its the weight of a clad quarter and doesn't have the sound of a silver coin on a hard surface. I was thinking maybe its a foreign planchet but I'm not too sure how to check that.
many companies out there for novelty will silver plate coins (and other metals). They electrostatically plate the coins with such a thin layer that it barely adds any weight to it. (and it won't have "the sound") go to merrickmint.com to look at many examples of various types of metal plating to US Coins. There's many other vendors too. When the "novelty" wears off they are often used and thus found in circulation from time to time.
Resource for checking if it were struck on a foreign planchet: http://numispedia.org/dump/Foreign-Coinage-Production-Figures.xls
@Clawcoins - Thank you I didn't consider that it might be plated since its the same color and a non-plated coin
Any time a post like this comes up, it is almost always state quarters. They were sold as silver, gold, and platinum plated by the tens of thousands by companies at the time. I am guessing yours is either a silver or platinum plated piece. People find the gold electroplated ones too in circulation.
I am not saying its not interesting sir, just posting what I know about the pieces. Every coin can be interesting.
So I have a 1977 quarter, philly, (no mint) that looks silver, weight is 5.6, you're saying it's probably plated? I have pics if you'd like.
