Yellowstone National Park coaster set w/2 holders

Here is a beautiful set of pre-owned ceramic coasters. They are from the illustrator Paul A. Lanquist (PAL). There are 2 different holders for the 5 coasters- black & brown metal. The coasters have a cork back and depict different park scenes. They are all in great shape except one has some surface scratches and wear. The brown metal holder has a paint chip. These have all been used so they may show some sort of wear. Measure 3.75" square approx. Thanks for looking