(CYANOTYPES)

Group of 33 photographs of the installation of water mains below the Grand Concourse in the Bronx. Cyanotypes, 4 1/2x7 1/2 (31) and 7 1/2x9 1/4 (2) inches (11.4x19.1 and 19.1x23.5 cm.), most with a dated placard proped up in the image and/or a numeric notations in the negative. 1902