Breathing Tube

A tube used for respiratory exercises.

Medical size: 6.4 Mpixels (18.4 MB uncompressed) - 2632x2444 pixels (8.8x8.1 in / 22.3x20.7 cm at 300 ppi)

Medical keywords: 1700's, 1800's, 1895, 18th century, 19th Century, advertisements, antique, breath, breathing, exercise, illustration, lung, medical, phrenological journal, respiratory, throat, vintage