Theranoid coil

Name/Title

Theranoid coil

Description

This is a theronoid coil with small demonstration light (ca. 1930). Elias Smith of Normal, Illinois was the first to produce electromagnetic body coils (1869), but the most commercially successful was the I-ON-A-CO (I Own A Company) body coil, an eighteen inch insulated coil of wire connected to house current. It was nicknamed the “magic horse collar” and was worn around the neck or waist. Gaylord Wilshire of Los Angeles developed the I-ON-A-CO and charged $55 each, though he never reaped the financial benefit of his “discovery” since he died of kidney failure in New York not long after its production. Wilshire, a multifaceted individual, was for a time involved in real estate speculation just outside of Los Angeles, and is remembered today by his famous namesake, the Wilshire Boulevard.

Made/Created

Time Period

20th Century

Condition

Overall Condition

Very Good

Date Examined

Aug 9, 2026

Create Date

August 9, 2026

Update Date

August 24, 2026