File:1962. Virgil Allen testing Dynafog Model 70 fog machine used for pest control. Machine has jet engine and disseminates only oil-based material. Shelton Ranger District, Olympic National Forest, Washington. (34349524876).jpg
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![File:1962. Virgil Allen testing Dynafog Model 70 fog machine used for pest control. Machine has jet engine and disseminates only oil-based material. Shelton Ranger District, Olympic National Forest, Washington. (34349524876).jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d4/1962._Virgil_Allen_testing_Dynafog_Model_70_fog_machine_used_for_pest_control._Machine_has_jet_engine_and_disseminates_only_oil-based_material._Shelton_Ranger_District%2C_Olympic_National_Forest%2C_Washington._%2834349524876%29.jpg/800px-thumbnail.jpg)
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current | 23:59, 3 May 2018 | ![]() | 2,069 × 1,391 (340 KB) | MechQuester | Transferred from Flickr via #flickr2commons |
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