Is Your 1987 Quarter Real? How to Spot a Fake

Introduction

With counterfeits flooding the market, knowing the specific diagnostic points for this item is critical. The 1987 quarter, like many modern coins, has become a target for counterfeiters looking to profit from unsuspecting collectors. This guide will walk you through the essential authentication methods to ensure your coin is genuine.

Historical Context

The 1987 quarter is part of the George Washington quarter series, which has been in circulation since 1932. Unlike earlier quarters, the 1987 issue was produced after the U.S. Mint began incorporating mint marks directly into the hub, a change that occurred in the mid-1980s. This shift means that all 1987 quarters should have their mint marks (D for Denver, P for Philadelphia) as part of the die itself, not hand-punched as in earlier years. This change is crucial for authentication, as it eliminates the possibility of certain types of die varieties, such as repunched mint marks (RPMs), for this year.

Key Authentication Markers

Weight and Dimensions

A genuine 1987 quarter should weigh exactly 5.67 grams and measure 24.26 mm in diameter. Use a precise digital scale to verify the weight. Even a slight deviation could indicate a counterfeit or a coin that has been altered. The thickness should be 1.75 mm. If your coin is significantly lighter or heavier, it may be a counterfeit made from a different metal or alloy.

Magnetic Properties

The 1987 quarter is composed of a copper-nickel clad composition (91.67% copper, 8.33% nickel). It should not be magnetic. If your coin is attracted to a magnet, it is almost certainly a counterfeit. Some fakes are made from magnetic metals and then plated to look like genuine quarters. Always test with a strong magnet as a quick initial check.

Die Markers and Design Details

Examine the coin under proper lighting and magnification. The 1987 quarter should have sharp, well-defined details on both the obverse (George Washington’s profile) and the reverse (eagle design). Look for the following:

• Mint Mark Position: The mint mark should be clearly visible and correctly positioned. For 1987, the mint mark is part of the die and should not show signs of doubling or repunching.
• Rim and Edge: The edge should be reeded (ridged) and uniform. Counterfeit coins sometimes have poorly defined or inconsistent reeding.
• Date and Inscriptions: The date “1987” and inscriptions like “LIBERTY,” “IN GOD WE TRUST,” and “E PLURIBUS UNUM” should be crisp and evenly spaced. Blurry or uneven lettering is a red flag.

Common Fakes and Alterations

Several types of fakes are commonly encountered:

• Machine Doubling: This is not a counterfeit but a minting error where the die vibrates during striking, causing a doubled appearance. It is usually less distinct than true doubled dies and is common on 1987 quarters.
• Cast Counterfeits: Made by pouring metal into molds, these often have a porous surface and lack fine detail.
• Struck Counterfeits: Made using transfer dies, these can be very convincing but often have slight imperfections in lettering or design details.
• Altered Dates or Mint Marks: Some fakes involve changing the date or mint mark of a common coin to mimic a rare variety. Always compare with known genuine examples.

Testing Methods

To authenticate your 1987 quarter, use the following methods:

1. Visual Inspection: Use a jeweler’s loupe or microscope to examine the coin’s surface, edges, and details. Look for signs of casting, tooling marks, or unusual wear patterns.
2. Weight and Measurement: Use a digital scale and calipers to verify the coin’s weight and dimensions.
3. Magnetic Test: Pass a strong magnet over the coin. It should not be attracted.
4. Sound Test: Gently tap the coin on a hard surface. Genuine coins have a distinctive ring; fakes often sound dull or flat.
6. Professional Authentication: If in doubt, submit the coin to a reputable third-party grading service like PCGS or NGC for expert evaluation.

Common Mistakes and Misconceptions

Many collectors mistake machine doubling for a valuable doubled die variety. Machine doubling is common and does not add value. Additionally, some assume that any coin with a doubling effect is a rare error, but most are simply the result of die wear or striking issues. Always compare with known genuine examples and consult reference materials before making conclusions.

Conclusion

Authenticating a 1987 quarter requires attention to detail and the use of multiple testing methods. By checking the weight, magnetic properties, die markers, and common signs of counterfeiting, you can confidently determine whether your coin is genuine. Remember, when in doubt, seek professional authentication. With counterfeits becoming increasingly sophisticated, knowledge and vigilance are your best defenses.