COLLECTION OF ORGANIC MATERIALS This department has a collection of more than 12,008 pieces, mostly of precolumbian origin. It contains objects such as wooden agricultural tools, rudders of precolumbian vessels, Inca and Inca-Colonial keros; musical instruments, such as flutes, quenas, drums, ocarinas, whistles; wooden idols up to 2.3 meters tall, including the scepters carried by the Lord of the Huaca de la Cruz, etc. All this turns it into one of the country's most important collections of organic materials. The common characteristic of the artifacts safe-guarded is their organic origin, therefore, the collection is very vulnerable to humidity and brusque changes in temperature.