A unique stereoview showing oil rig workers preparing a highly volatile and idiotic job of filling charging shells with unstable Nitro-Glycerine in order to extract oil below the surface.
It is amusing to see how the verso description states any carelessness by the "shooter" could result in the death of everyone 100 yards around him. This carelessness consist of sneezing,yawning and breathing too hard.
The average lifespan of a "shooter" was 3 months. At some point they figured out that Nitro-Glycerine was not a good thing to be carried in tin cans.