1891 Article Ingersoll Quarry Bar Channeler Vintage Machine William L MAB1 XGR6 This is an original 1932

This is an original 1932 black and white halftone print of the fascinating rock caves in the Qara Mountains at Al-Ahsa

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This is an original 1923 monochrome halftone print of a study done by American artist William Morris Hunt for the Capitol at Albany

This piece was illustrated by Schabelitz

Steel Mill

1891 Article Ingersoll Quarry Bar Channeler Vintage Machine William L MAB1 XGR6 This is an original 1932This is an original 1891 one page print article about the Ingersoll quarry bar. This article also features an illustration of the method of working a quarry in benches with the aid of the quarry bar, operated as a channeler. The apparatus may be used either for simple rock drilling, for gadding, or for channeling. The credit for the adaptation of the quarry bar and drill to the work of channeling is due to William L. Saunders, the engineer to the