Keywords: Fritzi Scheff demonstrating Magnavox for Fifth Liberty Loan in New York City, 1895 (3332675328).jpg American actress Fritzi Scheff demonstrating a Magnavox public address system in New York City to promote the Fifth Liberty Loan a US government war bond issue to pay for World War 1 The Fifth Liberty Bond was sold beginning in April 1919 so the picture was taken sometime after that date This was one of the first public address systems made possible by the development of the first practical amplifying vacuum tubes around 1917 and the first voice coil speaker the Magnavox in 1915 Rights Info No known restrictions on publication Part Of Powerhouse Museum Collection General information about the Powerhouse Museum Collection is available at http //www powerhousemuseum com/collection/database www powerhousemuseum com/collection/database Persistent URL http //www powerhousemuseum com/collection/database/ irn 322920 http //www powerhousemuseum com/collection/database/ irn 322920 http //www flickr com/photos/powerhouse_museum/3332675328/ Fritzi Scheff demonstrating Magnavox for Fifth Liberty Loan in New York City 1895 Uploaded by Fæ After April 1919 http //www flickr com/people/24785917 N03 Powerhouse Museum from Sydney Australia PD-Australia File Upload Bot Magnus Manske 2013-01-13 Fritzi Scheff 1919 in the United States People wearing buttoned clothing Horn speakers Magnavox Historical photographs Public address systems Female clothing Flickr-Powerhouse-Museum-image Photos uploaded from Flickr by Fæ using a script |