https://breuer.syr.edu/Documents/Detail/construction-photograph-bush-hammering-one-stair-well/116575
Construction Photograph, Bush-Hammering One Stair Well - Marcel Breuer Digital Archive
Construction Photograph, Bush-Hammering One Stair Well, circa 1958, Photographs, Annunciation Priory of the Sisters of St. Benedict (Bismarck, ND, USA,...
bush hammeringmarcel breuerconstructionphotographone
https://store.astm.org/jte20140492.html
Assessment of Surface Quality of Stone Treated by Water Jet and Bush Hammering Using Geostatistical...