I have six ancient Minifigs '25s which may be supposed to represent the Tirailleurs you seek. They wear the cone-shaped-wooven-bamboo-sunhats familiar from Vietnamese peasants working in rice paddies.
(edit) OK, I looked at the linked photos on wiki. The second photo 'former black flag' guys look identical to my old minifigs. The 'flat hat' tirailleurs I don't remember ever seeing in our scale.
Chick