I think those 5L chevs are from approx. 1920s and are featured in the Picard vol. 7 chevron book. The prices have gone crazy in recent years. Someone else has a more current estimate than I...... about 8 years ago you could buy a strand for less than 700.00. In the past year or so I heard one bead could be around 150.00. Everyone will have a different opinion....but this one, since it is mitered, and chipped on both ends, I would ask some talented chevron grinder, such as Alan Curtis or Rick Rice, to refinish the ends for me so I could wear and enjoy it more. Observing that it will not have the same value as an original grind, but would look nicer and have more aesthetic value as a jewelry component.