1926 Grand Canyon Car pass?
I've been trying to find some information out about these, but not sure what to call them. I've searched on eBay under a couple different categories for vintage items ... but don't see anything like this.
My great-grandparents took my grandparents on a cross country car trip in 1926 ... they drove from Worcester, Mass. to California and back again.
I have these passes from Yosemite, Yellowstone, Grand Canyon, Mesa Verde park and the Wind Caves National Park.
I love how they say that "Horse-drawn vehicles have the right of way"!
Does anyone know what I call these to find out more about them?