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Ether Monument NYPL bGF B. en Ether Monument nypl org Scan by NYPL Ether Monument Parks Monuments memorials Anesthesia Ether The Miriam and Ira Wallach Division of Art Prints and Photographs Photography Collection bedbcfbdabc GFB Robert Dennis collection of stereoscopic views deaadeeaa NYPGF repo nypl org File Ether Monument