The 1889-CC Morgan dollar pictured above appears to be an attractive coin in About Uncirculated condition worth well over $10,000. In reality, however, it is an alteration made from two coinscarefully cut and then joined together to create a different date and mintmark combination. In this case, the obverse and edge of an 1889 Philadelphia dollar were combined with the reverse of one ofthe more common CC-mint Morgan Dollars, most likely an 1883 or 1884.

A careful examination of this coin reveals a seam in the middle of the rim on the reverse. This seam was created when the forger removed the entire reverse of the 1889 Philadelphia dollarfrom within that line and replaced it with a reverse removed from a more common Carson City issue. The diagonal scratches on the rim are the counterfeiter's attempt to remove evidence of thejoint.

Overall, the counterfeiter did a decent job-this is one of the more deceptive counterfeits seen recently at NGC. Even the weight of this piece, 26.48 grams, is pretty close to the official weightof 26.73 grams. However, that difference is actually two and a half times the Mint's weight tolerance of +/- 0.097 grams.

A good way to check for authenticity issues is to try to match the coin to known dies. Morgan Dollars, for example, have been extensively cataloged by die variety (called "VAMs" after thecomprehensive study by Leroy Van Allen and A. George Mallis). If your coin does not match any known die pairs for the date and mintmark combination, you either have an important discovery or acounterfeit. Either way, this should cause you to more intensely scrutinize the coin.

To read the complete article, see:
Counterfeit Detection: 1889-CC Morgan Dollar with Joined Halves(https://www.ngccoin.com/news/article/6062/counterfeit-detection/)