Vintage Souvenir  Placemat set Navajo Harvey House?

Description

Here's a set of fourold placemats, representations of classic Navajo weavings, mounted on ahardboard surface just over 1/8" thick. I think they might be from the1950's, purchased at one of the Harvey House restaurants that were strung outalong Route 66 across the Southwest.  If you know better, please let meknow and I'll update this listing.
The set is sturdy -each one weighs about a pound and measures 15 1/2" by 11 3/4". They could use a good cleaning, and the one titled "Old StyleCrystal" shows some damage in the top left corner.  The oneidentified as "Germantown" has a price sticker that I think willcome off pretty easily with the right sticker-removing solvent.  Shippingwill be by USPS Ground or by Priority, at your choice.
Thanks for looking,and please email me if you have a question or a correction.