Simple dha

[Ian]

Here is the daab/daav with a rounded tip and protrusion. I would say it is 19th C and for some time I thought it was Cambodian because of the pointed toe to the scabbard. More recently, I have come to look at it as perhaps Thai in origin. The fittings are solid silver and heavy.
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And here is the one similar to Kroncke's example. This one has a round brass insert adjacent to the tip and is in a nice black lacquered scabbard. Pretty fancy for a "machete," but that is what I have been told this was used for. I would say this one is pre-1900 based on the condition of the blade and scabbard.
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[kronckew]

Mine has no markings on the sides, but a fair number of cross-cuts on the rather thick spine's forte, distal tapering rapidly to the thin foible, two broad ones with brass inlays. I include another daab that belongs to a friend who says they are from Northern Thailand/Laos, mine is probably Thai.