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<p>[QUOTE=&quot;Conder101, post: 300128, member: 66&quot;]These three web pages should explain the numbering system for the numbers to the left of the decimal point.</p><p><a href="http://www.pcgs.com/pcgsno/pcgs_lookup.chtml" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.pcgs.com/pcgsno/pcgs_lookup.chtml" rel="nofollow">http://www.pcgs.com/pcgsno/pcgs_lookup.chtml</a></p><p><a href="http://www.pcgs.com/pcgsno/index.chtml" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.pcgs.com/pcgsno/index.chtml" rel="nofollow">http://www.pcgs.com/pcgsno/index.chtml</a></p><p><a href="http://www.pcgs.com/pcgsno/frame.chtml?type=date&amp;filename=lincoln_cent" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.pcgs.com/pcgsno/frame.chtml?type=date&amp;filename=lincoln_cent" rel="nofollow">http://www.pcgs.com/pcgsno/frame.chtml?type=date&amp;filename=lincoln_cent</a></p><p>Now lets take a closer look at some of the information from that last page</p><p><br /></p><p>2425 1909 VDB&nbsp; 1C&nbsp;&nbsp; MSRD&nbsp; </p><p>2431 1909&nbsp; 1C Lincoln&nbsp; MSRD&nbsp; </p><p>2428 1909-S VDB&nbsp; 1C&nbsp;&nbsp; MSRD&nbsp; </p><p>2434 1909-S&nbsp; 1C Lincoln&nbsp; MSRD&nbsp; </p><p>92434 1909-S/S&nbsp; 1C S/Horizontal S&nbsp; MSRD&nbsp; </p><p><br /></p><p>The first Lincoln is the 09-VDB in red 2425 RB would be 2426, BN would be 2427</p><p>then we come to 2428 the 09-SVDB in RD, 2429 in RB, 2430 in BN</p><p>2431 is the 09 in RD, 2432, in RB, 2433 in BN</p><p>2434 is the 09-S in RD, 2435 in RB, 2436 in BN</p><p>Then we have a variety the 09-S/S&nbsp; They used the same numbers for the 09-S but preceded it with a 9</p><p>92434 in RD, 92435 in RB, and 92436 in BN</p><p><br /></p><p>The problem is that they are not consistent on how they assigned the numbers.&nbsp; Later in the list you will find where they used an 8 instead of a 9 to indicate a variety.&nbsp; And there are some places where it just doesn&#039;t follow the stand &quot;Groups of three&quot; to indicate the three colors for each date/mint.&nbsp; The numbers for the 22-D weak D and 22 plain strong reverse just come out of nowhere.</p><p><br /></p><p>This probably come from PCGS having changed the numbering system a few times over the years and having to go back and &quot;shoehorn&quot; in varieties added to the list.</p><p><br /></p><p>The numbers to the right of the / are assigned in an even weirder fashion.&nbsp; The computer keeps track of every serial number that has been assigned to a coin.&nbsp; Each morning each person entering submissions is assigned a randomly chosen starting point of numbers for that day.&nbsp; As each coin in a submission is entered it receives the next sequential number.&nbsp; If the next sequential number is one that has already been used before for some other coin, the computer selects another random starting number and continues on from there.&nbsp; So usually all of the coins in a submission will all have sequential numbers.&nbsp; If they don&#039;t it means they ran into a block of numbers that had already been used.&nbsp; But since the starting point is selected at random each time from all the available numbers, there is no way to tell just from looking at the serial number when a particular coin was submitted, or if one coin was submitted before or after another one (unless they were in the same submission.).&nbsp; The computer keeps track of all of that information and it may be called up internally at PCGS, but they do not give it out.</p><p><br /></p><p>There has been speculation from time to time that the first number in the serial number has special meaning and can be used to tell if a coin was submitted at a show, or for crossover, or a regular submission etc but so far every time we have tried to check the validity of such claims it has fallen through so I don&#039;t really think that it is true.[/QUOTE]</p><p><br /></p>

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