african spear for id please

[weapons 27]

could you identify these African spears ..the longest bamboo is a marked label Cameroon.
two of them on one or more rings sliding iron ...

have someone there you documentation on this type of spear
-Thank you in advance to all

[weapons 27]

more photo

[Tim Simmons]

I think you may have a mix. One is labeled Cameroon. Others may be Congo and Chad possibly Congo/Sudan border. Somebody may be more knowledgeable.

[Rumpel]

The third one has a South Sudanese, particularly Dinka look.