Hello Milandro,
I'm with David and the others here: All your examples with a high likelihood of having a separate katik/gangya with #3 being the only one leaving room for some doubt.
As mentioned, Moro kris in good shape often have a hardly visible separation line. Those with an engraved line are actually often way too obvious! OTOH, those with separate piece hardly exhibit more than the example in Albert's post (#14) - the line then usually showing uneven corrosion/loss.
Regards,
Kai
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