THE #2 OXYDONER
Manufactured by Dr. Hercules Sanche

Item #040 - The #2 Oxydoner, made by Dr. Hercules Sanche, Montreal, Canada c. 1897-1910; A heavy chromed cylinder 3.5" x 1.5" attached to a red fabric covered wire that connects to a nickel electrode and black elastic strap. Excellent condition, no corrosion.

$80

The device is listed as "Patented", and for once a patent actually issued Hercules Sanche's Patent for an Apparatus for Producing Thermal Results, however it seems that to get the patent Hercules had to abandon all claims that the device actually did anything.

He was not nearly so reticent in his advertising copy, below.