Fun Fun Fun, and thanks for the great pictures too
Aitor is made in Albacete, very close to Barcelona. In 1330 that area of Spain comprised a kingdom known as the Crown of Aragon, whose territory included Sardinia, Sicily, and mainland Greece.
imo Aitor is a Navaja. The bend in the handle is part of that tradition. imo the blade shape develops from the curved handle.
Navajas originate in Spain in the 1600's, with horn handles
from
http://en.wikipedia.org/wiki/Navaja
"the earliest Spanish knives recognizable as navajas date from around the late 1600s...
The new spring-back navaja proved very popular throughout Spain and was later exported to or manufactured in other countries as well, particularly France, Italy, and the island of Corsica"
Spanish Navaja, bull horn handle
Corsican knife with sheep horn handle
Spanish Aitor
Sardinian knife, sheep horn