Photograph of the dome construction at LeTourneau Munitions, Inc., a company that produced massive amounts of ammunition during WWII in Longview, Texas. The heavy machinery used to construct the dome were designed and built by Robert G. LeTourneau. The dome cap is pictured in the foreground.

Photograph of the inside of LeTourneau Munitions, Inc., a company that produced massive amounts of ammunition during WWII in Longview, Texas.

Photograph of the inside of LeTourneau Munitions, Inc., a company that produced massive amounts of ammunition during WWII in Longview, Texas. In the photo, the machinery that R. G. LeTourneau designed and built for his facility is shown.

Photograph of LeTourneau brand machinery moving heavy loads of supplies onto rail cars in Longview, Texas.

Photograph of the LeTourneau Tournamatic Carryall. This piece of machinery was designed and built by Robert G. LeTourneau of Longview, Texas.

Photograph of the LeTourneau 2592 LeTro-stacker at work hauling and stacking logs in Longview, Texas. This piece of machinery was designed and built by Robert G. LeTourneau of Longview, Texas.

Photograph of the LeTourneau Industries oil rig building facility near Vicksburg, Mississippi, which began operation in 1944. The photograph shows an aerial view of the facility. The platforms were assembled on the river band and were walked into the river for final fitting. From Vicksburg, the river tow boats transported the rigs to New Orleans, Louisiana, where they were transferred to the Gulf by ocean going tugs. The first off-shore drilling rig ever created was designed and built by Robert G. LeTourneau without any formal drawings or plans.