Counterfeit bottle cap

Counterfeit bottle caps are a miscellaneous item in Fallout: New Vegas.

Characteristics
Counterfeit bottle caps are the product of attempts by counterfeiters to create new bottle caps by replicating the look and feel of real pre-War bottle caps. Physically, they appear to be identical to standard Nuka-Cola bottle caps, and the creators intended them to be used for trading in their place. This is not possible however, as the Courier is able to instantly identify them as counterfeits, and they have no value. While the caps seem to be perfect replicas visually, it is possible the creators may have failed to copy some of the tell tale features that make a bottle cap genuine, a common issue for counterfeiters.

Location
Cap counterfeiting shack - 18 can be found on a table in the shacks basement near various empty soda bottles.