• Description
  • Note on album leaf: The checkerboard. The pouring of concrete into interlocking blocks permits grouting of contraction joints to form monolithic mass.PH Coll 239.38.
  • Format
  • Photograph
    image
    silver gelatin, b&w
    Scanned from a photographic print at 100 dpi in JPEG format and resized to 768x512 ppi or scanned from original text at 400 dpi in JPEG format and resized to 600 ppi horizontal. Saved at compression rate 3. 2000