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Upper Cascade Yo Semite Valley Cal. U.S.A NYPL bGF F. en by Singley nypl org Scan by NYPL Upper Cascade Yo Semite Valley Cal Keystone View Company The Miriam and Ira Wallach Division of Art Prints and Photographs Photography Collection cfbddabc GFF Robert Dennis collection of stereoscopic views debadeeaa NYPGF repo nypl org