Rufus Porter Plumb and Level Indicator
Advertisment from Scientific Mechanic December 25, 1847.
Rufus Porter, The Salesman & Promoter Porter promoted his own items in adds in his papers. In this add from the December 25th, 1847 issue of the Scientific Mechanic. The Scientific Mechanic was a paper he started after selling the Scientific American. |
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Rufus Porter Plumb and Level Indicator Advertisment from Scientific Mechanic December 25, 1847. |