A-7 nasal oxy mask: Daddy Cool (III).

Unintetionally hilarious (and reversed) portrait of  Willian R. Lovelace donning his invention -shared with W. M. Boothlog & O A. H. Bulloulian: the A-7 nasal type mask.

Photo: Getty Images.

More info: https://elpoderdelasgalaxias.wordpress.com/2014/02/23/a-7-nasal-oxy-mask-men-are-from-mars-ii/

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