Alutiiq Inuit masks from Kodiak island exhibited in Château-musée de Boulogne-sur-Mer, donated by Alphonse Pinart. The scans are probably from the illustrated catalog of the Kodiak, Alaska. Les masques de la collection Alphonse Pinart exhibtion.
Here’s more from the same collection:
Crowns, radially feathered headdresses or masks resemble some of the proposed shapes in Peratt’s paper for polar plasma column instabilities.