1923 Rotogravure Wireless Radio Tuning Coil Code Typewriter Scientific Advances YNHA2 or the collector of copper

or the collector of copper engravings

This ad is for the Corp

Smith and Wesson was originally founded in 1852

This is an original 1910 black and white print ad for talcum bath powder and sunscreen that was made and sold by Colgate & Company of 55 John Street

1923 Rotogravure Wireless Radio Tuning Coil Code Typewriter Scientific Advances YNHA2 or the collector of copper"Huge Construction for Transatlantic Radio" This is an original 1923 sepia rotogravure with three images of wireless radio: the multiple tuning coil used for ocean messages at Rocky Point, Long Island being examined by F. F. W. Alendersson, the inventor of the alternator; a code sending and receiving radio; and Major Gen. George O. Squier, the Chief Signal Officer of the Army demonstrating the ease with which the radio aerial may be dispensed with by