A few days ago, I purchased 26 segments Oneworld Explorer Circle Trip at CX city ticket office of TYO.
It consits of hand-written flight coupons and computer printed coupons as follows.

segment 1-8 -> hand-written
segment 9 -> printed, indicating flight coupon 2 of 15
...
segment 21 -> printed, indicating flight coupon 14 of 15
segment 22-26 -> hand-written

These coupon numbering says whole story.

Furthermore, some taxs and airport service charges are printed on separate papers, and attached on reverse sides of flight coupons.

Anyway, it took looong time.