Here are former two unmarked series. The first one, at the top, consists of 12 small figurines of 25mm, representing 6 cowboys and 6 Indians. No indication allows to identify them.

The same goes for this series of 6 Indians of 60mm, which is reminiscent of the series Africa, too unmarked (see HERE). There are variants. See below

Thanks to Helmut Bitsch for the pictures