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<p>[QUOTE=&quot;justafarmer, post: 2919016, member: 3926&quot;]Basic conventional thought is (at the time the Lincoln Cent began production)</p><p>A Master Hub was produced from the reduction process of the galvano. This Master Hub was used over many years of coinage production to produce the Master Die for each coinage year. Additional design elements were added to this Master Die (such as the remaining digits of the date). This Master Die was then used to produce Working Hubs which in turn were then used to produce the Working Dies. Additional design elements were added to the Working Dies (such as the mint mark) then used to strike coinage. Although there are exceptions (1960 Lincoln Cent) there was only one Master Die produced each year. And these Master Dies all have a common Master Hub in their lineage. </p><p><br /></p><p>Following is a CAD drawing of the Lincoln Cent Obverse for 1909 through 1919. Next is each drawing overlaid to produce a single drawing for 1909 through 1919. Next is the date extracted from the overlay drawing. [ATTACH=full]706466[/ATTACH] [ATTACH=full]706467[/ATTACH] [ATTACH=full]706468[/ATTACH][/QUOTE]</p><p><br /></p>

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