Because a lot of people have more time on their hand than usual, The Public Domain Review has released a downloadable PDF coloring book “for DIVERSION, ENTERTAINMENT and RELAXATION in times of SELF-ISOLATION.”
The Public Domain Review published these public domain images of plague doctors wearing what clothing they believed would protect them from the plague.
According to Wikipedia, this sort of iconic plague doctor costume was invented in 1630 by Charles de L’Orme,
The protective suit consisted of a light, waxed fabric overcoat, a mask with glass eye openings and a beak shaped nose, typically stuffed with herbs, straw, and spices. Plague doctors would also commonly carry a cane to examine and direct patients without the need to make direct contact with the patient.
The scented materials included juniper berry, ambergris, roses (Rosa), mint (Mentha spicata L.) leaves, camphor, cloves, laudanum, myrrh, and storax. Due to the primitive understanding of disease at the time, it was believed this suit would sufficiently protect the doctor from miasma while tending to patients.