Pp546-vintage Black Stock Telegraphic Ticker 1868 Patent Poster is a piece of digital artwork by Cole Borders which was uploaded on March 11th, 2020.
Pp546-vintage Black Stock Telegraphic Ticker 1868 Patent Poster
Displayed is a patent illustration for a Telegraphic Indicator, patented by E. A. Callahan on March 31, 1868, as indicated at the top of the... more
by Cole Borders
Title
Pp546-vintage Black Stock Telegraphic Ticker 1868 Patent Poster
Artist
Cole Borders
Medium
Digital Art
Description
Displayed is a patent illustration for a Telegraphic Indicator, patented by E. A. Callahan on March 31, 1868, as indicated at the top of the document. The diagram, labeled "Fig. 1," details the mechanism's internal components in a cross-sectional view and shows a circular dial at the bottom, which is presumably part of the device's operating mechanism. Handwritten signatures are present at the bottom, denoting the inventor and witnesses to the document, contributing a personal and historical touch to the technical drawing.
Uploaded
March 11th, 2020
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