A better copy of Playmobil 3028 arrived today have a look.
Oh and Tim as for Native American accuracy you are going to love what is on the other side of the flap front:

Front artwork

Front artwork after flap opened

Underside of flap (note the cowbow tied to the totem Pole (this would never happen))

Side artwork

Rear artwork (this was also one of the few sets that has an actual image of a human on it)
As always enjoy
James