Thank you both Battara & Rick... the deal I struck with my wife was if I keep
one of the Kalingas, she won't use the 2nd one on me!
I had found a similar example in the on-line catalog of the Macao Museum of Art's "Steel of Eastern Asia" exhibit dated to the 19th century:
Close-up of similar inlay:
The above example is catalog item #194 (click
here for link), though the ration of height-to-length of the two I acquired appear to more closely resemble #192. But aside from the most cursory recognition of form, I know nothing regarding the evolution of design and material usage of the head axe...
So is there a developing consensus on the approximate age of both the axes and the blade on the (presumably re-hilted) kris?