This is a fairly rare one. It is for 7mm Spanish Mausers Uruguay purchased from FN. They are made from the blades of French Lebel bayonets.
https://www.milsurps.com/images/impo.../TJJt9TR-1.jpg
https://www.milsurps.com/images/impo.../BlGwYMC-1.jpg
https://www.milsurps.com/images/impo.../1uoA1Lo-1.jpg
https://www.milsurps.com/images/impo.../CndbAim-1.jpg
