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Date:  

Description: Letterhead of the Invincible-Electric Bank Protection Company of Monroe, Wisconsin, a manufacturer of and dealer in bank protection fixtures, with side ima...

Date: 1948-10-21 

Description: A man and a woman stand by an Ultrafax machine as the first-ever transmission is received.

Date: 1938 

Description: Cover of an advertising brochure for power units suitable for use with cotton gins. Features photographic illustrations of cotton gins and International po...

Date:  

Description: Letterhead of the Frank R. Dengel & Company of Milwaukee, Wisconsin, dealer in lighting fixtures and sanitary plumbing. On the left is an illustration of a...

Date:  date unknown

Description: Advertisement for William Wilson, Medical Electrician that features a Greek godlike figure wearing various electrical medical garments and holding a placar...

Date:  

Description: Letterhead of W.E. Goodman of Milwaukee, Wisconsin, dealer in gas and electric lighting fixtures and sanitary plumbing, with a wall-mounted lighting fixtur...

Date:  date unknown

Description: Directions for use of Dr. Owen's Electric Belt and Spinal Appliance. There is a drawing of the device at the top of the page.

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