Early X-Ray and High Frequency Ads from Edwards

Endless thanks to Andy Wright

The Turn Of The Century Electrotherapy Museum - http://www.electrotherapymuseum.com

Journal of the IN State Med Assoc Dec 15 1911 pg vii
19
Journal of the IN State Med Assoc Dec 15 1911 pg vii

Journal of the IN State Med Assoc Jan 15 1913
20
Journal of the IN State Med Assoc Jan 15 1913

No 4 Coil
21
No 4 Coil

Jeff Behary