You can buy it at any Chanel boutique. In the U.S. only the EDT is available for No. 19, but that is O.K. because the EDT is gorgeous and one of my all-time favorite perfumes in the whole world.
This, No. 22, Cuir de Russie, Gardenia, and other wonderful Chanel scents are now sold exclusively at their boutiques. They will mail your purchase to you.
Google search "Chanel boutique" and find a city near you. Then call them on the phone. It is the best way.