African arrow and spear ?? need help

[Cerjak]

Here some pictures from 3 spear or arrow I don't know the exact name ,the bigger one is around 90 cm .
I Would like to know if they are good and authentic ,according to the seller they are from beginning 20 th century.
I my eyes the first one should be the older ( the wood etc..) the second one may be ,the last one I have more doubts .
I hope that someone in this forum could tell me more about those weapons
Regards
CERJAK

[Cerjak]

tha last one

[VANDOO]

ITS NOT MY SPECIALITY BUT AS NO ONE ELSE HAS JUMPED IN I WILL GIVE IT A TRY. #1 LOOKS OLD AND IS A SPEAR
#2 I WOULD GUESS SPEAR INSTEAD OF ARROW DUE TO THE WEIGHT IF IT WAS AN ARROW THE RANGE WOULD BE VERY LIMITED.
#3 APPEARS TO BE SOLID IRON, I WOULD GUESS TUEREG SHORT SPEAR WEAPON OR STAFF DENOTING RANK.
NOT MUCH HELP BUT BETTER THAN DRAWING A BLANK :shrug:

[Cerjak]

Dear VANDOO

Thank you to have open the discution on this thread ,I hope it will have somebody who could tell more about those spears.
Regards

Cerjak

[Tim Simmons]

I cannot be sure but the shorter one with the spade like shoe is from the Southwest Sahel. Presumeably French West Africa, vast region?