I bought this pouch recently from a collection in Wyoming. The old cowboy that I purchased it from was 90 years old and said that his father purchased it in the 1930's and can't remember whether it is Arapaho or Shoshone. It certainly was made in Wyoming on the reservation.
Condition: it's in remarkable shape, made from brain tan deer and seed beads. No missing beads. The leather is very soft, no cracking.
Measures roughly 10" x 10" with a draw string closure.