Benjamin Franklin with a glass harmonica
On the glass harmonica developed by Benjamin Franklin in 1761 there are mounted on horizontal spindle glass bowls graduated in size, the whole spindle is turned by means of a foot pedal
Picture No
10630785
Media ID
48194861
Size
1767px x 2005px
(1.2MB)
Credit
Mary Evans / Sueddeutsche Zeitung Photo
Usage Restrictions
No model release, no property release. No commercial, merchandising or advertising use without prior permission from Mary Evans Picture Library
