Maybe I will become unpopular now, but I will ask if the Tatarstan banknotes could be split by colours? Since the guidelines states different banknotes are deffined as “Significant design differences visible to the naked eye in daylight (…) Differences in the orientation, size, or position, or colour of a device" and these notes:
Exist in different colours, but are grouped under the same page.
Should they be split according to colour? I'll argue to comply with guidelines they should be split and for help/ease of identification.
Sources: