Re: world war 1 pistols.
The Basque language has nothing in common with Spanish, French, or any other known language. It has its origin in a relatively small area in Northern Spain, in and near the western edge of the Pyrenees mountains. The Basque region in Spain and the adjacent region in France are known for the manufacture of arms.
Some folks who say Basque is related to Spanish are probably thinking of Catalan, which is spoken in Northeast Spain, around Barcelona, and is a romance language, related to both Spanish (Castillian) and French.