Along Iran′s coastline and on the island of Qeshm in the Strait of Hormuz, women have been wearing masks for centuries. The styles vary according to region, ethnicity, but most noticeably according to religious affiliation. Shia women wear red rectangular masks, while those of Sunni women are black or indigo with gold, shaped to give the impression of eyebrows and moustache – once a ruse to fool invaders into thinking that the women they spied from a distance were in fact men. By Eric Lafforgue