A INTERESTING BARONG WITH SEVERAL UNUSUAL FEATURES. DO ANY OF THE FEATURES HELP YOU PIN IT DOWN AS TO LOCATION AND TIME PERIOD? THE CARVING IS DIFFERENT AND I AM NOT FAMILIAR WITH THE NAGA PATTERN YOU SPEAK OF. THE CENTER DESIGN AT THE THROAT LOOKS LIKE A LYRE (ANCIENT MUSICAL INSTURMENT) TO ME. THE FERULE BEING 5 OR 8 SIDED IS UNUSUAL AS WELL. NICE ONE