چگون دلار تقلبی را تشخیص دهیم؟

[amin_mb]

با سلام خدمت دوستان!

در این تاپیک کسانی که اطلاعاتی راجع به تشخیص دلار تقلبی از اصلی دارند، لطف بفرمایید به اشتراک بگذارند تا سایر دوستان هم بتونند استفاده کنند.

متاسفانه با افزایش چشمگیر قیمت ارز در کشورمان، مقدار بیشتری از دلارهای تقلبی روانه بازار و دست دلال ها شده است.

لطفا تا جایی که امکان داشته باشد، از دست دلالان خرید نکنید!
در هنگام خرید از صرافی ها، فاکتور خرید با سریال نامبر بخواهید!
در هنگام خرید از صرافی ها، بخواهید که تک تک اسکناس ها را برای شما زیر دستگاه چک کنند!
بعضی از صرافی ها مهر مخصوص خودشان را پشت اسکناس ها می زنند که مشخص می کنه اسکناس اصل هست و از کدام صرافی خریداری شده است.

موفق و موید باشید

[amin_mb]

1: Feel the texture of the bill
People who handle money many times, such as cashiers, can identify a lower-quality fake bill instantly just by touching it. You may not have that much experience, but just about everybody has handled enough money that they can detect many counterfeits simply by feeling the texture--and paying attention (the paper bank notes are printed on is not sold commercially, furthermore the composition of the paper and ink is confidential). Genuine currency has slightly raised ink that is produced in the intaglio printing process. You should be able to feel the texture of this ink, especially if you are holding a new dollar bill.
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2: Compare the bill with another of the same denomination and series
If the bill feels all right, or if you are a little suspicious but unsure, hold the bill side by side with another bill. Different denominations, obviously, look different, so get a note of the same amount. Also, all denominations, except the $1 and $2, have been redesigned at least once since 1990, so it is best to compare the suspect bill to one in the same series, or date.
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3:Notice the relative flatness and lack of detail on the fake bill. Look carefully at the printing quality
Real U.S. bills are printed using techniques that regular offset printing and digital printing (the most popular tools for all but the most sophisticated counterfeiters) cannot replicate. Look for blurry areas, especially in fine details such as around the borders--real bills have clear, unbroken borders--and on the Federal Reserve and Treasury seals, where the sawtooth points should be sharp and well-defined in genuine bills. Portraits in fake bills may appear dull, blurred, and flat, while in real currency, the portraits are sharp and contain very fine detailing.
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منبع

[Saeid]

تا اونجایی که من شنیدم 100 دلاری های چاپ 2006 به بعد احتمال تقلب توشون خیلی کمتره.

[Bahram]

تاپیک جالبیه!

دلار استرالیا یکی از اسکناسهایی است که جعل کردنش بسیار سخته...
چون از جنس پلاستیک ساخته شده، یک قسمتی از اسکناس هم نایلونی و شفاف هست. اگر میخواهید به اصل بودن اسکناس استرالیایی پی ببرید، باید اون رو در دستانتان مچاله کنید و بعد از چند دقیقه به حالت اول تانخورده و صافش برگرده!

[amin_mb]

Look for colored fibers in the paper :4
All U.S. bills have tiny red and blue fibers embedded in the paper. Counterfeiters sometimes try to reproduce these by printing or drawing these fibers onto the paper, but close inspection reveals, however, that on the counterfeit note you will see that they are printed on, rather than being part of the paper itself.
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Examine the serial numbers :5
Make sure the serial numbers on a bill match, and look at them carefully. Fake bills may have serial numbers that are not evenly spaced or that not perfectly aligned in a row. If you received more than one suspicious bill, see if the serial numbers are the same on both bills. If they are the same, then they are counterfeit notes.
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Look for security features in all denominations except $1 and $2. :6
The easiest way to spot a fake $5, $10, $20, $50 or $100 bill is to look for the following security features, all of which are very difficult to convincingly fake.
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Look for a security thread (a plastic strip) running from top to bottom. Beginning in 1990, an embedded (not printed) security thread was added to all bills except the $1 and $2 bills. If you hold the bill up to the light you easily see the strip and printing on it. The printing will say "USA" followed by the denomination of the bill, which is spelled out for $5, $10, and $20 bills but presented in numerals on the $50 and $100 bills. These threads are placed in different places on each denomination to prevent lower-denomination bills being bleached and reprinted as higher denominations. Compare a genuine bill of the same denomination to make sure the position of the thread is correct. If it is not, the bill is not genuine.

Hold the bill up to a light to check for a watermark. A watermark bearing the image of the person whose portrait is on the bill can be found on all $10, $20, $50, and $100 bills series 1996 and later, and on $5 bills series 1999 and later. The watermark is embedded in the paper to the right of the portrait, and it can be seen from both sides of the bill.

Tilt the bill to examine the color-shifting ink. Color-shifting ink (ink that appears to change color when the bill is tilted) can be found on 100, 50 and 20 dollar bills series 1996 and later, and on 10 dollar bills series 1999 and later; $5 and lower bills do not yet have this feature. The color originally appeared to change from green to black, but it goes from copper to green in recent redesigns of the bills.

Use a magnifying glass to examine micro-printing. Beginning in 1990, very tiny printing was added to certain places (which have periodically been changed since then) on $5 and higher denomination bills. The exact location of the micro-printing is not generally an issue. Rather, counterfeits will often have either no micro-printing or very blurred micro-printing. On a genuine bill, the micro-printing will be crisp and clear.

The $5 bill has "USA FIVE" written on the thread, the $10 bill has "USA TEN" written on the thread; the $20 bill has "USA TWENTY" written on the security thread; the $50 bill has "USA 50" written on the thread; and the $100 bill has the words "USA 100" written on the security thread. Micro-printing can be found around the portrait as well as on the security threads.

Hold the bill up to a black light. If authentic, the security thread in the bills will glow: $5 bill glows blue; the $10 bill glows orange, the $20 bill glows green, the $50 bill glows yellow and the $100 bill glows pink.

Run your finger nail over the portrait's vest of the bill. You should feel distinctive ridges, printers cannot reproduce this.
منبع

[amin_mb]

Tips

• Look for differences, not similarities. Counterfeit bills, if they're any good at all, will be similar to real ones in many ways, but if a bill differs in just one way, it's probably fake.
  
• An example of a EURion constellation on a U.S. $20 bill. Beginning with Series 2004, $10, $20 and $50 bills received a redesign with several changes to their overall look, notably the addition of more colors (see the picture of the $50 bill above). Probably the most important new security feature is the addition of EURion Constellations, a distinct arrangement of symbols (in this case, numbers) which triggers many color photocopiers to refuse to copy the bill.
  
• As the steps above explain, the $1 and $2 bills have fewer security features than other denominations. This is seldom a problem because counterfeiters rarely try to make these bills.
  
• It's a common misconception that if the ink smears when you rub the bill on something, the bill is not genuine. This is not necessarily true, but ink that does not smear does not mean that the bill is genuine.
  
• The Secret Service and U.S. Treasury do not recommend relying solely on a counterfeit-detection pen of the kind that you often see clerks use in stores. These pens can only indicate whether the note is printed on the wrong kind of paper (they simply react to the presence of starch). As such, they will catch some counterfeits, but they won't detect more sophisticated fakes and will give false-negatives on real money that is been through the wash.
  
• "Raised bills" are a very simple type of counterfeit in which numerals are glued onto a low denomination bill to make it look like it is a higher denomination. You can easily spot these fakes by comparing the numbers in the corners to the denomination printed in letters at the bottom of the bill. If you are still not sure, compare the bill to another bill of the same denomination.
  
• The ink used in U.S. currency is actually magnetic, but this is not a method for detecting counterfeits. The strength is extremely low and is useful only for automated currency counters. If you have a small but strong magnet, such as a neodymium magnet, you can lift a genuine bill. Although you cannot lift the bill off of a table, you can certainly tell that it is magnetic.
  

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[alireza1987]

آقا امین عزیز اگه ترجمه ی این 6 قسمتی هم که گذاشتی ممنونت میشن داداش....

بعد اگه چیزی و نکته ای منحصراً برا 100 دلاری اصل بزار چون بیشتر این اسکناس تو دست مردم هست....

خیلی آقایی....

[Saeid]

استادای دلار میگن: 100 دلاری رو اگر چند ثانیه تو کف دستت صاف نیگر داری انحنا پیدا میکنه. حالا درستیشو نمیدونم.

[M1KE]

روش های کاربردی و سریع تشحیص اصل بودن دلار که معمولا استفاده می شوند عبارتند از:

1- جنس اسکناس:  راحت ترین راه برای تشخیص اصل بودن اسکناس دلار لمس آن هست چون از نوعی کتان ویژه ساخته شده که در بازار به صورت تجاری فروخته نمی شود. به همین دلیل اگر مدتی با این اسکناس ها سر و کار داشته باشید در عمل به راحتی با لمس کردن آن متوجه کاغذی بودن اسکناس جعلی و کتانی بودن اسکناس اصل خواهید شد.

2- وضوح بالا: گوشه های اعداد و شکل ها دارای نوک تیزی هایی است که در اسکناس های تقلبی این تیزی ها به شکل گرد چاپ می شوند و به عبارتی شکل ها دارای وضوح و دقت کافی نیستند. دلیل آن هم پایین بودن کیفیت پرینترها یا دیگر روش های معمولی چاپ اسکناس تقلبی است که قابلیت چاپ این تیزی ها را با وضوح و جزئیات بالا ندارند.

3- تکراری نبودن شماره سریال ها: این روش به ویژه برای کنترل اسکناس با تعداد بالا خیلی سریع عمل می کند چون با بر زدن سریع اسکناس ها می شود شماره سریال ها را کنترل کرد که به شکل خیلی تابلو همه از یک نوع نباشند! (چون چاپ اسکناس های تقلبی با شماره سریال های مختلف کار سختی است و به همین دلیل معمولا آنها را بین اسکناس های دیگر پخش می کنند.) اگر دسته اسکناس کاملا نو باشد شماره سریال ها از 00 تا 99 خواهند بود و اگر هم خیلی نو نباشند که به صورت تصادفی خواهند بود.

4- براق بودن یکی از عددها: در هر چهار گوشه اسکناس دلار، عدد اسکناس نوشته شده (100، 50، 20 و غیر) که یکی از آنها حالت طلاکوب و براق دارد و در مقابل نور برق می زند.

روش های زیر برای کنترل موردی می توانند استفاده شوند و خیلی برای تعداد بالا استفاده نمی شوند:

5- برجسته بودن برخی نوشته ها: برخی از نوشته های اسکناس های 100 دلاری برجسته هستند. برای نمونه اگر در اسکناس 100 دلاری با دست روی عبارت United States of America بکشید می بینید که برجسته است.

6- تصویر نامرئی: در قسمت سفید رتگ اسکناس مثل اسکناس های خودمان تصویر رییس جمهور موردنظر وجود دارد که با گرفتن در نور دیده ی شود.

7- نوار امنیتی: مشابه اسکناس های ریال، اگر اسکناس دلار را مقابل نور بگیرید یک نوار امنیتی درون اسکناس مشاهده می شود.