Keris Combong with markings

[A. G. Maisey]

Sorry David, I have no way in which to form opinion.

If I look at the grain of the iron, it does not appear to be broken, the same grain line flows through, as far as I can see. I suppose it is possible that the smith might have driven a chisel down into a smaller split and made it bigger, or even some owner might have done the same.

It is an old blade, it has had a lot of owners, anything is possible.