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St Dupont Pen Serial Number Check

How to Check the Serial Number of an S.T. Dupont Pen

S.T. Dupont is a French luxury brand that produces pens, lighters, leather goods, and other accessories. S.T. Dupont pens are known for their quality, craftsmanship, and elegance. However, due to their popularity and high value, they are also often counterfeited by unscrupulous sellers. Therefore, it is important to check the serial number of an S.T. Dupont pen before buying or selling it, to ensure its authenticity and avoid being scammed.

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In this article, we will explain how to check the serial number of an S.T. Dupont pen using some simple methods and tips.

Where to Find the Serial Number

The serial number of an S.T. Dupont pen is usually stamped on the right side of the cap, near the clip. It consists of six alphanumeric characters, such as 5E1BJ12. The serial number should be uneven, imperfect, and not perfectly spaced, as it is hand-stamped by the manufacturer. If the serial number is engraved or laser-etched, or if it is perfectly aligned and spaced, it is likely a fake.

Some limited edition pens do not have a serial number stamped on the cap, but instead have a numbered piece that indicates how many pens were made in that series. For example, a pen that says 1935/2686 means that it is the 1935th pen out of 2686 ever made in that edition. The numbered piece should also be hand-stamped and uneven.

How to Verify the Serial Number

There are several ways to verify the serial number of an S.T. Dupont pen, such as:

  • Comparing it with a list of known fake serial numbers. There are some online resources that provide a list of fake serial numbers that are commonly used by counterfeiters, such as [this Reddit post]. If the serial number matches any of these codes, it is almost certainly a fake.

  • Contacting the S.T. Dupont customer service or an authorized dealer. You can send an email or call them with the serial number and ask them to confirm its authenticity. They may also be able to provide you with more information about the model, year, and origin of the pen.

  • Checking other features of the pen, such as the weight, the refill cap color code, the logo, and the packaging. A genuine S.T. Dupont pen should be lightweight (less than 110 grams), have a color code inside the refill cap that matches the ink color, have a clear and crisp logo on the cap and barrel, and come with a certificate of authenticity and a warranty card in a branded box.


Checking the serial number of an S.T. Dupont pen is one of the best ways to determine its authenticity and value. However, it is not foolproof, as some counterfeiters may use stolen or copied serial numbers from genuine pens. Therefore, it is advisable to also check other aspects of the pen and consult with experts if you have any doubts.

We hope this article has been helpful and informative for you. If you have any questions or comments, please feel free to leave them below.

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