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<p>[QUOTE=&quot;dursin, post: 582238, member: 17425&quot;]Thanks, that does help a lot.&nbsp; Was hoping to add a 3rd tab to your spreadsheet, but looks like it&#039;s not worth it if it can&#039;t be made accurate due to not being able to tell which side the note was printed on.&nbsp; </p><p><br /></p><p>btw: You should add a &quot;Plate Position Arithmetic&quot; page to your website. </p><p><br /></p><p>Went out and looked at examples of uncut sheets from closed Heritage auctions and just as you stated, all the serials run in sequence for the sheet of 12 with the exception of the Hawaii and North Africa $1 sheets.&nbsp; I looked at 4 of them and the right side serial numbers were always 1998 greater than the left which seems like it indicates they were printing batches of 333 sheets.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie2" alt=";)" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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