Miners drilling underground in Mount Isa, ca. 1954

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Where: Queensland, Mount Isa, Australia

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When: Unknown

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Creator: Unidentified.

Location: Mount Isa, Queensland.

View the original image at the State Library of Queensland: onesearch.slq.qld.gov.au/permalink/61SLQ_INST/dls06p/alma...;

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Owner: State Library of Queensland, Australia
Source: Flickr Commons
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queensland statelibraryofqueensland kalkadoon outbacktowns history mountisa johnoxleylibary john oxley library

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  • profile

    Bazza155

    • 28/Feb/2023 21:57:51

    Air leg drilling. A pneumatic cylinder was attached to the drill and its end was secured to the floor by a claw like end. As the drilling progressed the air leg would maintain pressure on the drill and also hold the weight of the drill. Prior using the air legs It was physically tiring for the miner to hold up the heavy drill as well as pushing pressure onto it.