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<p>[QUOTE=&quot;pigeonman333rd, post: 25588797, member: 101714&quot;]2.94+.13= 3.07 ?</p><p>2.99+.13= 3.12 ?</p><p>2.94-.13= 2.81 ?</p><p>2.99-.13= 2.86 ?</p><p>(6)</p><p>except as provided under subsection (c) of this section, a one-cent coin that is 0.75 inch in diameter and weighs 3.11 grams. The weight of the one-cent coin may vary not more than 0.13 gram. So 3.1g+.13g= 3.23, 3.1g-.13g= 2.97g so the 1979 2.99g is within tolerance.</p><p>What is the weight tolerance of a zinc penny?</p><p>The Zinc one-cent weighs approximately 2.5 grams, with a tolerance of 0.10 grams. So 1983 2.94g weight by comparison 2.5g+.10g = 2.6g 2.5g-.10g=2.4g so any zinc cent above 2.6g is outside of tolerance? 2.94g+.10g= 3.04g, 2.94g-.10g= 2.84g either way you look at the 1983 2.94g planchet it appears to be outside of the zinc cent tolerance. Now lets compare the copper planchet tolerance to see if it falls under that category or not. 2.94g+.13g= 3.07g, 2.94g-.13g= 2.81g. The weight of the 1983 2.94g planchet seems to exceed the tolerance for the zinc planchet but does not come up high enough in weight to be considered with in tolerance for the copper planchet. .02g outside of tolerance![/QUOTE]</p><p><br /></p>

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