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Stan McDonald - author 's Blog

28 Oct 2021

B.I.E Errors

Coins | Stan McDonald - author

In the 1960s, many collectors sought error coins with a small break between the “B” and the “E” in “LIBERTY” on Lincoln cents. Most of the B.I.E. errors occurred in the 1950s when the Mint released thousands of coins with this type of error. By the 1960s, this error type became scarcer as dies breaking in this specific spot did not occur at the same frequency as in the 1950s.Searching over 250,000 coins in the last few years, I have found a few coins with B.I.E. errors in the 1990s, but none dated in the 1970s and the 1980s. Since this error type is not of any significant value and these coins are not usually encapsulated, there isn’t enough information from collectors to obtain credible counts of these errors.By: Stan McDonald author and numismatist

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22 Oct 2021

Lincoln Cent Profiles - Part One

| Stan McDonald - author

Lincoln Cent Profiles - Part OneLincoln cents design changes are rarely known in detail by collectors. Paying attention to the finer details could lead to a valuable discovery such as an obverse or reverse modified for a mintage year but using a previous design to mint some issues. Studying the design helps determine doubled dies, especially those created by successful impressions to make a die from a hub. Successive impressions into a hub sometimes create doubling that is slightly overlapping the intended design. It does not appear that the Mint has used dies from a previous year to mint coins from a new year.The profile of Abraham Lincoln on the cent appears to be the same as it was in 1909 when the first Lincoln cents were minted. As an avid error coin collector, I carefully look at the entire coin profile for any differences that might indicate an error coin. Doubled dies are not restricted to the date or the letting on a coin; there are doubled dies with the coin's portrait, such as the doubled ear on a few Lincoln cent issues.Since the first Lincoln cent was minted, subtle changes are common in the portrait of Lincoln. The hairline, and bread, on the portrait, have changed many times throughout mintages since 1909. The size of the portrait has changed once since 1909. The measurements are in millimeters with some field changes are small collectors and may not recognize them without a microscope and a millimeter scale. I measured the profiles of Lincoln cents issued since 1909 and noted that the size remained the same until 1969. In 1969, the US Mint reduced the profile of Lincoln on the cents.The first photo shows a 1919-D Lincoln cent overlaid on a 1909 Lincoln cent. The profile of Lincoln remained unchanged. The only visible change is the date where you can see part of 1909 behind 1919. All the profiles of Lincoln dated from 1909 through 1968 measure the same. In 1969, the Mint changed the profile, making it smaller than previous issues (see photo 2). The change is less than .05 centimeters in width, which is less than the head of a pin. From the overlay, a slight reduction in the size of the profile can be seen on the left side of the head when lining up the two coins by the front of the face. The profile from 1969 remains as the current profile in Lincoln cent mintages.The third photo is a 1969-D Lincoln cent overlaid with a 1960 Lincoln cent using "LIBERTY" as the base point. The differences in the portrait can be seen with the help of the arrows. This is one of my favorite photos revealing the differences in the obverse of the coin.A lot more to post.Stan

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18 Oct 2021

Class VI Doubled Die

Coins | Stan McDonald - author

Class VI doubled dies are truly rare. The doubling is not easily identifiable since the doubling is extra thickness on the coin with noticeable doubling lines. The coin is the class of DDO discovered on a 2019 Lincoln cent I have discovered and classified as NGC MS66 DDO.

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17 Oct 2021

Class V Doubled Die

| Stan McDonald - author

Class V doubled die shows doubling to the right or the left around the coin with a widespread, into a medium spread, and finally a minor spread. For example, Liberty will have widespread doubling above the lettering, the Motto will have a medium spread to the right of the lettering , and the date will have a minor spread below the numbers.

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13 Oct 2021

Occluded Gas

Coins | Stan McDonald - author

Occluded gas occurs when there is reside on the surface of a coin from the wash tank. The gas resides escapes when the coin is plated, creating bubbles on the surface of the coin. More familiar to the late 1980s, when the mint was experiencing cleaning issues from the wash tank. Although not as common, there are coins dated in the 1990s and after with occluded gas issues.In the first photo is a 1982-D Lincoln cent with extensive gas bubbles encapsulated by NGC. The second photo shows a rare 2021 Lincoln cent with occuled gas.Stan McDonald - Author of error coin guides

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