Eggs. An interesting point. To me the egg shape is so distinctive you do not have to be much of a craftsmen to communicate the idea. Also the arcs that could be eggs, are placed in an ordered pattern that look very much like scales of either a reptile or fish. I am not at all sure but to me the art work on this blade is to be seen and easily understood. What may seem a jumble of simple marks to our eyes given our educated/channeled views of communicating may make it difficult to read a very simple message. Also there could be the tendancy to see far more than is actually there. I could also be talking out of my /////
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Could fire breathing be from the relatively long European influence in the PI. ?