![Edison's Electric Pen, later renamed Mimeograph, rare advertising leaflet, ca. 1879 - Price Estimate: $900 - $1200 Edison's Electric Pen, later renamed Mimeograph, rare advertising leaflet, ca. 1879 - Price Estimate: $900 - $1200](https://www.pbagalleries.com/images/lot/1644/164461_0.jpg)
Edison's Electric Pen, later renamed Mimeograph, rare advertising leaflet, ca. 1879 - Price Estimate: $900 - $1200
![An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019 An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019](https://journals.sagepub.com/cms/10.1177/1354856519846790/asset/images/large/10.1177_1354856519846790-fig8.jpeg)
An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019
!['An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019 'An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019](https://journals.sagepub.com/cms/10.1177/1354856519846790/asset/images/large/10.1177_1354856519846790-fig3.jpeg)
'An Extremely Useful Invention': Edison's electric pen and the unravelling of old and new media - Peter Unwin, 2019
![Thomas Edison's electric pen with its wet cell battery. The pen was designed to duplicate documents and went on sale in late 1875 but because of the high maintenance battery its commerical Thomas Edison's electric pen with its wet cell battery. The pen was designed to duplicate documents and went on sale in late 1875 but because of the high maintenance battery its commerical](https://c8.alamy.com/zooms/9/d7ed5c3cbaba4d84b64b4ff0259ccfab/2her5pp.jpg)