La plupart des photos datant de la Seconde Guerre mondiale sont en noir et blanc. Mais certaines, rares, ont été prises en couleur, notamment celles commandées par le gouvernement américain.

Au total, plus de 1600 clichés ont été pris, notamment celles prises par le photographe Alfred T. Palmer de 1941 à 1943. Les Etats-Unis voulaient ainsi mettre en avant l'effort de guerre et la mobilisation américaine. On peut notamment y voir la place des femmes, qui ont investi les usines alors que les hommes partaient en guerre.

Des photos repérées ce samedi 16 février par Gizmodo. Même si elles ne sont pas récentes, c'est l'occasion de (re)découvrir ces dizaines de clichés dans notre diaporama ci-dessous (les 1600 photos sont disponibles ici).

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• A_good_job_in_the_air_cleaner_of_an_army_truck,_Fort_Knox,_Ky

• A_young_woman_employee_of_North_American_Aviation,_Incorporated,_working_over_the_landing_gear_mechanism_of_a_P-51_fighter_plane,_Inglewood,_Calif

• 33,000-volt_electric_power_line_into_Fort_Knox_

• AlfredPalmerM3tank1942b

• 16-inch_coast_artillery_gun_stamped_Watervliet_Arsenal_1921

• A_combat_crew_receives_final_instructions_just_before_taking_off_in_a_YB-17_bomber_from_a_bombardment_squadron_base_at_the_field,_Langley_Field,_Va

• A_girl_riveting_machine_operator_at_the_Douglas_Aircraft_Company_plant_joins_sections_of_wing_ribs

• A_large_electric_phosphate_smelting_furnace_used_to_make_elemental_phosphorus_in_a_TVA_chemical_plant_in_the_vicinity_of_Muscle_Shoals,_Ala

• A_scene_in_a_steel_mill,_Republic_Steel,_Youngstown,_Ohio

• A_young_soldier_of_the_armored_forces_holds_and_sights_his_Garand_rifle_like_an_old_timer,_Fort_Knox,_Ky

• A-20_Havoc

• AlfedPalmersmokestacks

• AlfredPalmerRamagosa

• AlfredPalmerwelder1

• Allegheny_Ludlum_Steele_Corp,_Brackenridge,_Pa

• American_mothers_and_sisters,_like_these_women_at_the_Douglas_Aircraft_Company,_give_important_help_in_producing_dependable_planes_for_their_men_at_the_front,_Long_Beach,_Calif

• Annette_del_Sur_publicizing_salvage_campaign_in_yard_of_Douglas_Aircraft_Company,_Long_Beach,_Calif

• Assembling_B-25_bombers_at_North_American_Aviation,_Kansas_City,_Kansas

• B-25_bomb_bay_gas_tanks

• B17F_-_Woman_workers_at_the_Douglas_Aircraft_Company_plant,_Long_Beach,_Calif

• Bessemer_converter_(iron_into_steel),_Allegheny_Ludlum_Steee_Corp

• Blast_furnace_at_Carnegie-Illinois_Steel_Corporation_mill_in_Etna,_Pennsylvania

• Blast_furnaces_and_iron_ore_at_the_Carnegie-Illinois_Steel_Corporation_mills,_Etna,_Pennsylvania

• Bomber_pilot,_captain_of_a_YN-17_

• Boys_trained_in_the_fundamentals_of_navigation_may_become_technicians_in_the_armed_service,_Los_Angeles,_Calif

• Browning_machine_gunner,_Ft_Knox,_Ky

• Carpenter_at_the_TVA's_Douglas_dam_on_the_French_Broad_River,_Tenn

• Casting_a_billet_from_an_electric_furnace_at_Chase_Brass_and_Copper_Co_-_Euclid_Ohio

• Checking_the_alignment_of_a_turbine_shaft_at_the_top_of_the_guide_bearing_in_TVA's_hydroelectric_plant,_Watts_Bar_Dam,_Tenn

• Clerk_in_a_stock_rooms_of_North_American_Aviation_checking_the_numbers_of_parts_-_Inglewood_Cal

• Construction_at_TVA's_Douglas_Dam,_Tenn

• Crane_Driver_Douglas_Dam

• Crewman_of_an_M-3_tank,_Ft

• Douglas_Dam_Construction

• Drill_press_operator_fsac_1a35306

• Drill_press_operator,_Allegheny_Ludlum_Steele_Corp,_Brackenridge,_Pa

• Driver_of_Marine_truck,_New_River,_NC

• Employees_at_North_American's_plant_put_the_finishing_touches_on_another_B-25_bomber

• F

• Flexible_performance_of_C-47_transport_planes_is_due_in_part_to_their_two_1,200_horsepower_radial_engines_and_to_their_three-blade_variable-pitch_propellers

• Gas_welding_a_joint_in_a_line_of_spiral_pipe_at_the_TVA's_new_Douglas_Dam_on_the_French_Broad_River,_Tenn

• Generator_works_at_the_winding_of_a_generator_stator_in_a_new_addition_to_TVA's_hydroelectric_plant_at_Wilson_Dam,_Sheffield_vicinity

• Halftrack_infantryman_with_Garand_rifle,_Ft_Knox,_Ky

• Huge_drop_hammers_work_day_and_night_forming_sheet_metal_parts_for_United_Nations_bombers_and_fighters_at_the_North_American_Aviation_plant,_Inglewood,_Calif

• In_North_American's_modern_machine_shop,_another_aircraft_part_is_finished_on_a_huge_turret_lathe,_North_American-_Aviation,_Inc,_Inglewood,_Calif

• Infantryman_with_halftrack,_a_young_soldier_of_the_armed_forces,_holds_and_sights_his_Garand_rifle_like_an_old_timer,_Fort_Knox,_Ky

• Ladle_of_molten_iron_is_poured_into_an_open_hearth_furnace_for_conversion_into_steel,_Allegheny_Ludlum_Steele_Corp,_Brackenridge,_Pa_Note_the_safety_latch_on_the_crane_hook

• Large_electric_phosphate_smelting_furnace_used_in_the_making_of_elemental_phosphorus_in_a_TVA_chemical_plant_in_the_Muscle_Shoals_area,_Alabama

• Light_tank_going_through_water_obstacle,_Ft_Knox,_Ky

• Light_tank,_Ft_Knox,_Ky

• M-4_tank_crews_of_the_United_States,_Ft_Knox,_Ky