![](http://www.alamy.com/thumbs/6/AC01FCAA-B077-4CE0-A589-44EF871B5F88/EW9H22.jpg)
Patients taking inhalations of compressed air with the mask, vintage engraved illustration. Magasin Pittoresque 1875.
Size: 4593px × 5000px
Photo credit: © Patrick Guenette / Alamy / Afripics
License: Royalty Free
Model Released: None
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