Frame, old, big three frames in one, painting, well Priceless!

Bought this awhile back at thrift store for $37.50 It is large 34 1/2 X 50 1/2 inch. It fits American canvas so it is not European. Now the painting seems even larger than the frame, The boy in the painting is wearing South American Nazca Indian Jewelry, famous for Nazca lines in Peru. They say Aliens made the Nazca Lines, The boy in painting may be an alien! Any help on frame appreciated!! Don