This excavated 
Left-Hand Parrying Dagger or Short Sword, was reportedly found near the Rio Grande river in New Mexico. It may date from exploration of the area by Coronado 1540-1542 
(1).  The 5 3/8 inch hilt has a large scent-stopper shaped pommel, a curved cross-guard (quillon) and a ring guard (anneau) with a turned down finial. The 14 inch spear point blade has three grooves (fullers) on each side 
(2).