• Creator
  • Simmer
  • Created Date
  • 1939
  • Description
  • Caption on image: Unit 4. Pontoon A-1 in Ballard Locks. 10-13-'39PH Coll 334.Simmer2.
  • Format
  • Photograph
    image
    Scanned from a photographic print using a Microtek Scanmaker 9600XL at 100 dpi in JPEG format at compression rate 3 and resized to 768x512 ppi. 2000