Sujet

Thomas Edison's Megaphone.

Légende

Thomas Edison's Megaphone, using three separate funnels lined up in a row. From El Museo Popular published Madrid, 1889.

Date

1889

Crédit

Photo12/UIG/Universal History Archive

Notre référence

UMG23A64_067

Model release

Non

Property release

Non

Licence

Droits gérés

Format disponible

51.1Mo (5.1Mo) / 43.2cm x 29.7cm / 5100 x 3504 (300dpi)

Mots clés

Funnel Invention Illustration Horn Cone Trumpet Portable Acoustic Speaking Shaped Edison Hand-Held Thomas Cone-Shaped Funnels 19th century Bullhorn Speaking-Trumpet Hailer Megaphone Edison's Blowhorn