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Blasting in New York City
Weighing ingredients during manufacture of dynamite
Repauno, New Jersey explosives plant
Blasting for pipe line in the Susquehanna River near Marietta, Pennsylvania
Making ammonium nitrate during manufacture of dynamite
Louviers Works for explosives manufacture in Louviers, Colorado
Potomac River Works near Martinsburg, West Virginia for manufacture of dynamite
Repauno, New Jersey explosives plant
New York State College of Agriculture Bridge
Building the pipeline in the Susquehanna River near Marietta, Pennsylvania
John T. Dyer Company's trap rock quarry at Monocacy, Pennsylvania before the Nitramon blast
Handling acid tanks at Repauno, New Jersey works
Dynamite Mixing House at Repauno, New Jersey plant
Ripple Rock in the Seymour Narrows being exploded
Dynamite going into hopper at Repauno, New Jersey plant
Safe handling of explosives at Repauno, New Jersey plant
Mound City at Potomac River Works near Martinsburg, West Virginia for manufacture of dynamite
Hauling coal with shuttle buggy
Blasting for the West Virginia Turnpike
Potomac River Works near Martinsburg, West Virginia for manufacture of dynamite
Blasting for the West Virginia Turnpike
Mound City at Potomac River Works near Martinsburg, West Virginia for manufacture of dynamite
Louviers Works for explosives manufacture in Louviers, Colorado
Ripple Rock in the Seymour Narrows being exploded
Dynamite manufacture at DuPont's dynamite plant near Martinsburg, West Virginia

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