Dr. Bryan’s Electro Voltaic. patented 1874 and 1877.
Decade: 1860s
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At Home Shock Collar (1861)
Attributed to: UnknownCentury: 19th CenturyDecade: 1860sMedia Type: ArtSource: Internet ArchiveLicense: Public Domain
Dr. Bryan’s Electro Voltaic. patented 1874 and 1877.