Portland Water DistrictDate Produced: 1930 Dimensions: 62 cm; 62.2 x 47 Physical Description: 41 x 55 cm aerial photos in 3-post binder Accession Number: OML-1930-131
Portland Water DistrictDate Produced: 1930 Physical Description: 41 x 55 cm aerial photos in 3-post binder Accession Number: OML-1930-132