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<p>[QUOTE=&quot;Pete Apple, post: 3745568, member: 103982&quot;]<b>Silver Quarter -&gt; how to ID</b></p><p><br /></p><p><b>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?” </b></p><p><br /></p><p><b>A few 1965 silver quarters do exist, but are quite rare: <a href="https://www.coinworld.com/news/precious-metals/whitman-baltimore-expo-washington-quarter-error-coins-coin-world-market-analysis-steve-roach-numismatics-collecting-hobby.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.coinworld.com/news/precious-metals/whitman-baltimore-expo-washington-quarter-error-coins-coin-world-market-analysis-steve-roach-numismatics-collecting-hobby.html" rel="nofollow">https://www.coinworld.com/news/precious-metals/whitman-baltimore-expo-washington-quarter-error-coins-coin-world-market-analysis-steve-roach-numismatics-collecting-hobby.html</a></b></p><p><br /></p><p><b>A 1970-D Silver Clad Quarter also exists with the copper core not visible on the edge.</b></p><p><br /></p><p><b><a href="https://coins.ha.com/itm/errors/1977-d-25c-washington-quarter-struck-on-a-40-silver-planchet-improperly-cleaned-ngc-details-xf-breen-4457/a/1231-3499.s" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://coins.ha.com/itm/errors/1977-d-25c-washington-quarter-struck-on-a-40-silver-planchet-improperly-cleaned-ngc-details-xf-breen-4457/a/1231-3499.s" rel="nofollow">https://coins.ha.com/itm/errors/1977-d-25c-washington-quarter-struck-on-a-40-silver-planchet-improperly-cleaned-ngc-details-xf-breen-4457/a/1231-3499.s</a></b></p><p><br /></p><p><b>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.</b></p><p><br /></p><p><b>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. </b></p><p><br /></p><p><b>Quarter 1947-1964 = 6.250 g +/- 0.194 g (900 Ag 100 Cu)</b></p><p><br /></p><p><b>Weight of Clad quarter 1965 – to present = 5.670 g +/- 0.227 g (75 Cu, 25 Ni on pure Cu) </b></p><p><br /></p><p><b>(1976 = 5.750 g +/- 0.200 g - 40% silver clad) </b></p><p><br /></p><p><b>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 </b></p><p><br /></p><p><b>Here are instructions about how to perform a specific gravity test:</b></p><p><br /></p><p><b><a href="http://lincolncentsonline.com/Copper%20Or%20Zinc.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://lincolncentsonline.com/Copper%20Or%20Zinc.html" rel="nofollow">http://lincolncentsonline.com/Copper Or Zinc.html</a></b></p><p><br /></p><p><b>Another alternative to determine metal content is via an XRF Scan.</b>[/QUOTE]</p><p><br /></p>

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