Here's some pics of my WW2-era Pangasinan talunasan, round-tip variant. The spine gimping is the same as one of Detlef's samples. The blade engravings, while not 1:1 with Detlef's blades, has a similar theme.
The hilt profile also appears on Ilokano blades. The peen style also appears on Pampanga and Ilokano blades.
The hilt carving is distinctly Pangasinan, I've not encountered that on Ilokano, Kapampangan, or hilts from elsewhere in Luzon.
I absolutely adore this talunasan...this is how it looks like in action:
https://bit.ly/talunasan
The round-tip variant has a similar nuance to round-tip minasbad. The thrusts are wicked.