1874 CC Trade Dollar?

Chop marks on Trade dollars are pretty common and they certainly do add to the 'history' of the coin. A fair number of collectors prefer chop marked Trade dollars for that very reason. However, they do reduce the numismatic value. They won't "ruin" the value, but it will sell for less than an unmarked coin. The amount of the reduction depends on the number of marks and whether they obscure the major design elements. (A chop mark on Liberty's face will reduce value more than one in the field.)

Sadly, Trade dollars are one of the most counterfeited coins in the market, and some counterfeits are then chop marked to make them look more authentic. Many collectors simply won't purchase them unless they are slabbed.