The baselard or "Swiss dagger" is a historical Swiss blade weapon with a crescent-shaped pommel and crossguard. The baselard's characteristic hilt features a crescent-shaped pommel and crossguard. Their curved shapes appeared as early as the 13th century and remained peculiar to Switzerland, and do not appear to have been imitated elsewhere. Their blade was characteristically double edged, tapering to a point and was, on earlier examples, sometimes diamond shape in cross-section. This form would lend a great deal of strength to the blade, especially useful for piercing armor.