This is a group of 120 magic lantern glass slides AND working lantern of a trip across the
 American Southwest in 1918.
    The family who took this trip must have been very well off to be
 able to afford to have these slides made. They leave behind a unique glimpse of something I
 have only read and heard stories about; long distance travelling along dirt wagon roads in an 
era when automobiles were still something of a novelty, not a means for long distance travel. 

   Family appears to hail from San Diego, California, where they start the trip at the Mexico border
 with their Filipino chauffer (the car also sports a "Manila" pennant the whole way) and travel 
across the Mojave desert, cross the Colorado River on a ferry called the "Nellie T", go through 
Parker Az., take a side trip to the Grand Canyon and to the Petrified Forest, visit cliff dwellings,
 pueblos, ruins, Meteor Crater, Cowboy's branding steers, Arizona Mission, and take lots of scenery 
pics with the car. 

(I would guess that) 80% of the slides are of California & southwestern scenes, with
 the balance being the remainder of the trip to New England. Some really great pics of early roadsigns
 put up by California Auto Club, AAA, Goodrich Tires, and a really neat DANGER skull sign put up at the
 top of a grade by the Butler Auto Co. of Alburquerque, N.M.

    Some of the locales given in the signs are  Welsh's Well where they fill up with water, Ludlow, 
Barstow, San Bernardino, Needles, Parker, Danby , Amboy, Ash Fork, Williams, Prescott, Phoenix, Seligman.