[1] In Wikipedia i see the following list, using N'Ko digits for counters and with a hyphen for a separator.

Is this typical? If so, I'll document it in our Ready-made Counter Styles doc.

[2] I also see another list which appears to have ordinal counters.

Is this another typical style that we should document? I notice that sometimes the dot is missing, and i'm guessing that that's a typo. It also happens in item 11 - i'm guessing that the sequence would continue using dots like this:

Is that correct?

[3] Does N'Ko use alphabetic counter styles that we should also add? If so, can someone provide the ordered list of letters that would be used, and indicate what happens after the list becomes longer than the number of letters available (usually that would be ...z aa bb ...) (A scan of an example would be useful.)