GRAND RONDE, Ore. (AP) — Tribal artifacts that have been hidden away in the archives of the British Museum in London for nearly 120 years are being returned to a Native American tribe for an exhibit at its own museum — a facility the tribe expanded and upgraded in part to reclaim these pieces central to its complicated heritage. The 16 objects will go on display Tuesday on a small Oregon reservation after a decades-long campaign by the Confederated Tribes of the Grand Ronde to bring them back from Europe. The intricate bowls, woven baskets and other pieces were collected by the Rev. Robert W. Summers, an Episcopal minister who bought them from destitute tribal members in the 1870s and sold them to a colleague.