Historical information
Port of Portland Authority Archives
Physical description
Sheet of six black and white contact prints, three taken from elevated position of early stages of Silo construction. Three showing construction site. Rectangular concrete tower and ship in the background.
Inscriptions & markings
Front: 171. 13-11-64 172. 13-11-64 173. 13-11-64 178. 13-11-64 179. 13-11-64 180. 13-11-64 (In white underneath each print).
Back: 178 and 180 in pencil