I assume the larger hole in your hilt goes through completely? Then there seems to be a high probability that a retention strap (or a cord holding such a piece of cloth) ran through it. I doubt it has seen a lot of service though.
The example shown in post #8 also seems to have a similar hole; I can't remember any with typical minasbad though.
Based on the quite rare occurrence and apparent differences in age, I'd be inclined to vote for personal preference rather than indictors for age/origin.
BTW, the smaller holes indicate losses of decor.
Regards,
Kai