[migueldiaz]

Don't know much about gunongs but I found this in Federico Malibago's webpages on Moro swords:

"Gunong hilts are what distinguish gunongs most from other Moro weapons. Many associate the bulbous pistol grip style pommel, which is often at extreme near right angles to the hilt proper, as being the traditional gunong hilt. However, truly old gunongs feature a straighter hilt, as can be seen in the related picture of old gunongs. At some point between the turn of the century and the 1930s, gunong hilts gradually changed into the more familiar pistol grip. In this time period as well, gunongs start to appear made with much more extravagant fittings and materials. These newer gunongs often featuring beautifully chased bands on their scabbards, with conspicuous Western style belt clips on the top most band. Also, guards start to appear with more frequency, as well as hilts featuring socketed bulbed ferrules that connect to the bulbous pommel ...

"As to identifying the age of newer gunongs, one must rely on looking at such logical identifying features such as material usage, construction method, etc… The usage of German silver, and aluminum become much more prevalent, like with many Moro swords, after WWII. One piece construction of ferrules and other fittings, versus soldering, also becomes more prevalent after WWII as metal tubing becomes more common in the area in such dubious forms as shell casings. With kris variants one must look at the shape of the luks. Like their larger sword counterparts, more modern tourist gunong blades have much more angular luks. Thinner blades, are also more common on newer pieces. Also newer gunongs tend to be much larger than older pieces, with some pieces verging on sword like proportions. This author personally owns a modern tourist gunong that is over 2 ft in size. Ironically, some of the best Moro chasing/repousse this author has seen have been on newer, often tourist gunongs. Often these newer gunongs also feature either an inlay down the blade consisting of copper, brass, or nickel. It is my personal feeling that many of the newer gunongs are prime examples of Moro craftsmanship, and should be cherished as highly as their plainer older counterparts. However one must take caution to consider these more modern pieces for what they are, modern expressions of traditional art, and if the term applies, sometimes a tourist pieces.

Hence it appears that the subject gunong is a pre-WW2 one.

Then we also see gunongs in Krieger's familiar 1926 publication of Phil. edged weapons, which plate below has this caption:

"Plate 13 -- Hand weapons for cutting, piercing, and stabbing: Knives and daggers. No. 1. Dagger; triangular sectioned, curved, and pointed blade; single cutting edge; carved wood handle. Quinapundar, Samar Island. 2. Dagger "bala-rao"; hastate shape double-edged blade; handle provided with a peculiar finger-fitting grip consisting of extended tang and two horns; silver ferrule at center. Chief defense weapon of the Mandayan, southeastern Mindanao. 3. Woman's knife. Blade curved, designed for striking a slanting blow. Bagobo, southeastern Mindanao. 4. Plain dirk-dagger having curved blade, ferruled wooden handle, and circular guard. Moro, Mindanao. 5. Serpentine Malay dagger; grotesque dugong ivory carving on hilt. Collected by the United States exploring expedition, 1838-1842, under Admiral Wilkes. 6. Malay dagger; curved wooden pistol shape hilt; characteristic serpentine figure carving; straight-edged blade. Wilkes exploring expedition. 7. Serpentine kris-dagger; plain horn handle; engraved circular silver guard and ferrule. Moro, Mindanao. 8. Malay dagger; laminated blade; figured and carved handle of wood. Dyak, Pasir River, southeast Borneo. 9. Punal de kris; blade chased on surface section near handle; wood handle set in socketed brass ferrule. Moro, Mindanao. 10. Dagger; curved, double-edged blade; curved plain wood handle. Moro, Mindanao. 11. Dagger having saberlike blade; metal guard provided with volute tips; carved wood handle; blade chased and inlaid with soft metal at back. Moro, Jolo. 12. Dagger; serpentine blade; metal cross guard; spiral fluted grip of Camagon wood. 13. "Insurrecto" sword-dagger chased blade, pointed and double edged; cross guard; horn handle inlaid with shell mosaic; symbolically figured pommel."

Hope this helps somehow