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<p>[QUOTE=&quot;Conder101, post: 3594361, member: 66&quot;]The 1942 experimental aluminum cent was struck on a double thickness planchet.&nbsp; They were trying to see if they could get the weight up higher because the regular thickness was way too light.&nbsp; Something they apparently didn&#039;t consider in 1973 with the experimental aluminum cent.&nbsp; And something they seem to be rediscovering every two years (at a cost of millions of dollars) as they continue to try and find a replacement material for the cent. (That has a manufacturing cost, not including materials, of over one cent.)</p><p><br /></p><p><br /></p><p>Makes GREAT toilet bowl cleaner.&nbsp; Best bowl cleaner on the market was Tidy Bowl which until about 10 years ago was 19% Hydrochloric acid.&nbsp; It is probably still the best commercial one but the HCl concentration is down to 9%.&nbsp; (most are 2% or less)[/QUOTE]</p><p><br /></p>

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