Traveling the desert does automatically mean that one is confronted somehow with navigation. I will present some instruments, documents and maps here which were (or are) mainly used for navigation in the desert:
Some pages out of a 1943 manual for the Abrams Universal Sun Compass.
The GPS 75 was followed by the Garmin 12C and since a few years I am the happy owner of a Garmin 60. That's not “state of the art” anymore – but still more than sufficient for me.
My first desert travels were still without GPS. Then, in the mid 1990's we had a quite simple Magellan with us. The first GPS I owned was the Garmin 75, where a set of AA batteries lasted for about four hours only.
The Howards Mk.III sun-compass was equipped with a handle but could alse be fixed on the dashboard of the patrol truck. The photos show an original mounting used with the British Army.