Photograph of the Series MA-31 Landing Craft Retriever, originally completed by LeTourneau in November 1954. It was ordered by the U.S. Army, and only one was ever built. Its main mission was to drive into deep surf and retrieve beached or capsized amphibious vehicles, according to author Eric Orlemann.

Photograph of the Series "MA-31" Landing Craft Retriever built for the U.S. Army by LeTourneau. It was the only LCR ever built, according to author Eric Orlemann. Its main mission was to drive into deep surf and retrieve beached or capsized amphibious vehicles.

Photograph of LeTourneau transporter being put through its off-road tests. Its six wide tires made it especially well-suited for very sandy environments, such as deserts.

Photograph of Power Packer Model M-50 Sheepsfoot Roller (according to the filename it was given.) Date of photograph is unknown. The sheepsfoot roller was popularized by R.G. LeTournea and was used to compact soil in much the same manner herds of sheep were used for the same purpose pre-machinery.

Photograph of an early version of LeTourneau's FL-50 Fork Lift Truck, shown picking up an 18-wheeler trailer. The company began making the trucks in mid-1961, according to author Eric Orlemann. A total of four of the FL-50 Fork Lift Trucks were built.

Photograph of a Series K-205 diesel-electric-drive tractor-dozer, the largest and most powerful dozer of its day, according to author Eric Orlemann. The dozing blade was 20 feet wide, and the overall working weight of the K-205 was 160 tons. Only one of these massive machines was ever produced.

Photograph of the Model TC-497 Overland Train Mkii, the largest and most powerful of all the "land trains" produced by LeTourneau. The TC-497 was built for the U.S. Army to transport cargo in the Arctic under a wide variety of road conditions, according to author Eric Orlemann. It contained nine cargo trailers, a control car and two trailing power units. The TC-497 weighed 135 tons. Its overall length was about 527 feet.

Photograph of the Model TC-497 Overland Train Mkii, the largest and most powerful of all the "land trains" produced by LeTourneau. The TC-497 was built for the U.S. Army to transport cargo in the Arctic under a wide variety of road conditions, according to author Eric Orlemann. It contained nine cargo trailers, a control car and two trailing power units. The TC-497 weighed 135 tons. Its overall length was about 527 feet. One of the LeTourneau domes is visible in the background.

Photograph of the Model TC-497 Overland Train Mkii, the largest and most powerful of all the "land trains" produced by LeTourneau. The TC-497 was built for the U.S. Army to transport cargo in the Arctic under a wide variety of road conditions, according to author Eric Orlemann. It contained nine cargo trailers, a control car and two trailing power units. The TC-497 weighed 135 tons. Its overall length was about 527 feet. An unidentified U.S. Army official is pictured talking to the driver in the cab.

Photograph of a Model C-6 Transporter demonstrating its off-road capabilities. The Transporter was powered by a large 300-hp Buda Super Diesel engine, according to author Eric Orlemann. Its generator provided power to electric traction motors in all six wheels. Its load capacity was 35 tons.

Photograph of the tong on Series "F" Log Stacker (Model C-4) shown picking up a log. According to author Eric Orlemann, LeTourneau got into the log-stacking business after selling the original company to Westinghouse in 1953 and agreeing not to build earthmoving equipment for five years. It proved to be highly successful. The log stackers were used all over North America as well as overseas.

Photograph of iron ingots being melted at the rolling mill, likely in Longview, Texas.

Photograph of two women and a man at the Snack Shack at R.G. LeTourneau, Inc.

Photograph of three women and a man at the Snack Shack at R.G. LeTourneau, Inc.

Photograph of several men waiting to be served at the Snack Shack at the R.G. LeTourneau Longview, Texas plant.

Photograph of several men waiting to be served at the Snack Shack at the R.G. LeTourneau plant in Longview, Texas.

Photograph of two men being waited upon by a woman in the Snack Shack at R.G. LeTourneau, Inc.'s Longview, Texas plant.

Photograph of two women and two men at the Snack Shack at R.G. LeTourneau, Inc. in Longview, Texas.

Photograph of R.G. LeTourneau Grading Machinery plant, almost certainly in Stockton, California. This photo is likely from the 1930s.

Photograph of a LeTourneau Tournacrane on a railroad flatcar in Peoria, Illinois.

Photograph of Model D Roadster Tournapull and a specially built trailer with an overhead trolley crane.

Artist's rendering of a LeTourneau Series "T" Transporter, used to haul off-road equipment, timber and pipe, according to author Eric Orlemann. Total production for all transporter types and variations was about 25 units.

Photograph of the Robert G. LeTourneau ship, stuck in mud in the Amazon River, 1954-06-13. The R.G. LeTourneau Foundation built a city on the headwaters of the Amazon River by clearing 990,000 acres it had been granted by the Peruvian government in exchange for building 31 miles of road through the Amazon rainforest.

Photograph of en early vision of the Tournapull being pulled by a Caterpillar tractor. This is likely a promotional photo, with the Tournapull hand-tinted yellow. The image was scanned backwards, judging from the reverse lettering at bottom right.