1891 Article Ingersoll Quarry Bar Channeler Vintage Machine William L MAB1 XGR6 There is some very faint

There is some very faint wrinkling in the bottom left corner --please see image

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

This is an original 1946 black and white halftone print featuring two scenes of the south side of Saint Stephen's Chapel before the fire from an engraving of J

Steel Mill

This is a small original 1899 black and white print ad for Gold Dust Washing Powder from the N

1891 Article Ingersoll Quarry Bar Channeler Vintage Machine William L MAB1 XGR6 There is some very faintThis 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