PM for spanish sources on Visayan kris and kampilan blades
 

It is apparent after reading some sources that the visayans weren't alien to using weapons outside of farmers tools such as the bolo or talibong. I've realized that some artifacts reported to be used by Visayans such as armor does not exist today due to possibly being lost to time or have to be revealed.

Prior to the Laguna Copperplate Inscription for example, historians viewed the pre-Philippines to be culturally isolated from the rest of Asia, as no evident pre-Hispanic written records were found at the time.
I'd imagine with the lack of current physical artifacts on Visayan forged kampilans and kris, the same is believed?

You can make a virtual roundabout visit to the Spanish Antropology museum and see if you recognize something.

http://www.mcu.es/visitavirtualmuseo...e-antropologia

There's actually an available reference that points to archaeological evidence of a Visayan kris. If you dig patiently here in the forum, MiguelDiaz made a nifty graphical representation of that phenomenon. If you want to read more about it, refer to "The Philippine Iron Age" by Solheim (1959)

I've seen his forums before. There are actually a few arguments made by some people on previous threads on how the wavy blades shown by Miguel aren't Visayan or aren't made by Visayans.

There aren't many weapons in this museum, seems more like a artifacts on the daily lives of colonial Filipinos outside of war.

Yup, there have been counter-arguments. Another thing to consider is this. Blade evolution occurs over time. The kampilan and kris back then may not necessarily be the 18th or 19th century weapons we know of. In fact, the kampilan supposedly used against Lapu-Lapu may not even fit of our idea of a kampilan today.

In the course of 19th-21st century, many antique blades have evolved and have either similar or thoroughly different versions today. Suffice to say, until more archaeological evidence is found, we can only theorize regarding this topic.