View looking down the length of the upper sluice line on Elevator No. 3 showing the riffles.
Inscription recto: #563. Upper Sluice Line on Elevator #3 Showing Various Kinds of Riffles
View looking down the length of the upper sluice line on Elevator No. 3 showing the riffles.
Inscription recto: #563. Upper Sluice Line on Elevator #3 Showing Various Kinds of Riffles