![](/TrimIcon/w32h32/GreyFile.png)
Equipment operation
Wednesday, January 11, 1967
A2012-005
P/12654
Views of a treaded machine taking core samples or pile-driving something. Includes views of water flowing over rocks and smoke. Water Bureau ; Bull Run ; Excavation ; Testing
Equipment operation
Wednesday, January 11, 1967
A2012-005
P/12654
Views of a treaded machine taking core samples or pile-driving something. Includes views of water flowing over rocks and smoke. Water Bureau ; Bull Run ; Excavation ; Testing