The location Alice will mark on your map is the Sunset Sarsaparilla Headquarters. Alice requests that you go take care of business on her behalf, to restore some monetary order. But this new form of counterfeit is from a machine, and is far different.
Most pressing machines had been destroyed long ago counterfeits still exist, but as they are done by hand, there's no danger in inflating monetary worth. As you know, Bottle Caps serve as the Wasteland's primary form of currency, yet counterfeiting is surprisingly rare. Basically, Alice is worried that people are utilizing a bottle cap pressing machine at a factory in order to make counterfeit Bottle Caps.
Unlike the aforementioned side quest, this new offer from Alice is much quicker and much easier. After you've completed the Side Quest entitled You Can Depend on Me for Alice at the Crimson Caravan, you'll be offered this side quest upon speaking with her again.
