During the early 1950’s Tournatrain development, numerous ads were published about the trains, or the products that they used. This particular ad by R.G. LeTourneau, Inc., was meant to advertise it’s capabilities in multiple terrain types (e.g. deserts or jungles). Additional language within the ad also advertises LeTourneau’s newly re-designed electric wheel.
R.G.’s Overland Trains had quite a few names. You will read or see the machines referred to as trackless trains, land trains, or others. Read about the many Sno-Train names at https://overlandtrains.com/updates/the-lcc-1-sno-train-has-many-names/.