Beaney, Harold L., c. 1932-1939, Photograph, B 71136/176
Tauwitchere lock chamber - cleaning reinforcing steel - approx. concrete proportions: 1.0 cement / 1.0 quartzite sand / 0.7 Inman River sand / 0.2 Marks Point sand / 3.4 quartzite - 1/4" to 3/4" / W/C ration 0.6