Contrary to the third party information online (as of the time of this blog post), the Museo de la Coca y Costumbres (Coca and Costumes Museum) in Puno, Peru is no longer located at Deza St. 301, but at Ilave St. 581 (behind the cathedral).
This comes from personal experience retracing my steps halfway across central Puno.
Grr.
(Museo de la Coca. Coca Museum. Museo de Costumbres. Costums Museum. Museo de la Coca y Costumbres. Coca and Costumes Museum.)